The choice between responsible for vs responsible of requires more than a simple right-or-wrong answer.
Use responsible for when talking about a duty, person under someone’s care, required action, cause, result, credit, or blame.
“Lena is responsible for the monthly report.”
A narrower responsible of + person pattern can evaluate someone’s behavior as sensible or mature:
“It was responsible of Lena to check the figures twice.”
These expressions perform different grammatical jobs. You cannot normally replace for with of before a project, task, department, result, or activity.
Quick Answer
Use responsible for before the duty, person, action, result, or cause:
“He is responsible for training new employees.”
Use responsible of + person only when evaluating that person’s conduct:
“It was responsible of him to document the problem.”
Do not write:
“He is responsible of training new employees.”
The two structures are not interchangeable.
Why People Confuse Them
The related noun structure often causes confusion:
“The responsibility of the supervisor.”
That sentence is correct because of the supervisor identifies the person who holds the responsibility. However, the adjective follows a different pattern:
“The supervisor is responsible for safety.”
Some learners may also translate a similar expression directly from another language. English adjective-preposition combinations do not always match word-for-word translations.
Compare:
“That was responsible of you.”
This evaluates your conduct.
“You are responsible for the equipment.”
This identifies something you must manage or protect.
Key Differences At A Glance
| Context | Best Choice | Why |
|---|---|---|
| Assigned duty | responsible for | Introduces what someone must handle |
| Person under someone’s care | responsible for | Identifies who must be protected or supervised |
| Required action | responsible for + gerund | Introduces what someone must do |
| Cause of a result | responsible for | Identifies what produced the outcome |
| Blame or credit | responsible for | Connects someone with an outcome |
| Behavioral evaluation | responsible of + person | Describes someone’s action as sensible |
| Project or department | responsible for | Responsible of is not the standard duty pattern |
| Reporting relationship | responsible to | Identifies the person or authority someone answers to |
- Responsible for: Broad, common, and used for accountability.
- Responsible of: Restricted to evaluations such as “responsible of you.”
- Responsible to: Used for reporting or answerability.
Meaning and Usage Difference
Responsible functions as an adjective in both target constructions.
Responsible for + noun
Use a noun to identify the duty, person, object, or result:
“Our department is responsible for security.”
“The teacher is responsible for the students.”
“Poor maintenance was responsible for the failure.”
Responsible for + pronoun
A pronoun may follow for:
“Who is responsible for it?”
“I am not responsible for them after 5:00.”
Responsible for + gerund
Use an -ing form when an action follows:
“She is responsible for approving invoices.”
“They are responsible for maintaining the equipment.”
Because for is a preposition, do not use a bare verb after it.
Incorrect: “He is responsible for manage the office.”
Correct: “He is responsible for managing the office.”
Responsible of + person
In the limited evaluative construction, responsible means sensible, mature, or showing good judgment. The of phrase identifies whose behavior receives that evaluation.
“It was responsible of her to report the damaged cable.”
“That was responsible of you.”
This structure does not assign a duty. It comments on an action or decision that someone has already made or may make.
Tone, Context, and Formality
Responsible for is neutral and standard in conversation, education, business, government, technical documents, and formal writing.
Workplace:
“Jordan is responsible for vendor payments.”
Academic:
“Several factors were responsible for the change.”
Formal:
“The officer responsible for the investigation submitted a report.”
The evaluative responsible of you construction is also grammatical, but it appears less often because it serves a narrower purpose.
“That was responsible of you.”
Some speakers may prefer a fuller alternative:
“That was a responsible decision.”
“It was responsible of her to call for help.”
Formal language does not make phrases such as “responsible of the project” acceptable. The correct form remains responsible for the project.
Which One Should You Use?
Use responsible for when answering any of these questions:
- What must the person manage?
- Whom must the person care for?
- What action must the person perform?
- What caused the result?
- Who deserves blame or credit?
Examples:
“Who is responsible for this account?”
“The storm was responsible for the outage.”
“Maria is responsible for checking the inventory.”
Use responsible of + person when evaluating conduct:
“It was responsible of you to save a copy.”
“That was very responsible of Mia.”
Use responsible to when identifying an authority or person someone answers to:
“The manager is responsible to the director.”
Always examine the complete sentence. A person after of does not automatically make the evaluative pattern correct.
When One Choice Sounds Wrong
Responsible of sounds wrong when it introduces a task, project, object, person under someone’s care, result, or activity.
Incorrect:
“Tara is responsible of the project.”
Correct:
“Tara is responsible for the project.”
Incorrect:
“He is responsible of checking the doors.”
Correct:
“He is responsible for checking the doors.”
Incorrect:
“The technician is responsible of the equipment.”
Correct:
“The technician is responsible for the equipment.”
Using for in the evaluative construction also changes or damages the intended meaning.
Wrong for the intended evaluation:
“That was responsible for you.”
Correct:
“That was responsible of you.”
The corrected sentence means that your behavior showed maturity or good judgment.
Common Mistakes
Mistake: Using “of” before a duty
Incorrect: “She is responsible of recruitment.”
Correct: “She is responsible for recruitment.”
Mistake: Using a bare verb after “for”
Incorrect: “He is responsible for manage the schedule.”
Correct: “He is responsible for managing the schedule.”
Mistake: Using “responsible to do” for an established duty
Less natural: “She is responsible to prepare the report.”
Natural: “She is responsible for preparing the report.”
Mistake: Confusing adjective and noun structures
Incorrect: “The manager is responsible of recruitment.”
Correct adjective structure: “The manager is responsible for recruitment.”
Correct noun structure: “Recruitment is the responsibility of the manager.”
Mistake: Rejecting every “responsible of” sentence
Valid: “It was responsible of her to call for help.”
Here, the sentence evaluates her decision.
Mistake: Confusing “for” and “to”
“The assistant is responsible for the records” identifies the duty.
“The assistant is responsible to the director” identifies the person the assistant answers to.
Everyday Examples
Duties and Jobs
“I am responsible for updating the schedule.”
“Who is responsible for ordering supplies?”
“Dana is responsible for customer complaints.”
“The maintenance team is responsible for the elevators.”
Care and Supervision
“The teacher is responsible for the students during the trip.”
“Parents remain responsible for their children’s safety.”
“Each volunteer is responsible for one group.”
Actions
“She is responsible for approving travel requests.”
“Marcus is responsible for locking the office.”
“Our team is responsible for testing the new system.”
Causes and Outcomes
“A software error was responsible for the delay.”
“Heavy rain was responsible for the flooding.”
“Poor communication was partly responsible for the confusion.”
Blame and Accountability
“The driver was responsible for the damage.”
“No single employee was responsible for the mistake.”
“The committee held the contractor responsible for the cost.”
Behavioral Evaluations
“It was responsible of you to wear protective equipment.”
“That was very responsible of Mia.”
“It would be responsible of them to confirm the address first.”
Dictionary-Style Word Details
Verb
Responsible for: The expression is not a verb. Responsible is an adjective commonly used after linking verbs such as be, feel, and seem.
“She feels responsible for the mistake.”
It also appears in the structure hold someone responsible for:
“They held the supplier responsible for the delay.”
Responsible of: This expression is also not a verb. In its valid construction, the adjective commonly follows a form of be:
“It was responsible of you to act quickly.”
Neither target expression is a phrasal verb.
Noun
Neither complete expression is a noun.
The related noun is responsibility:
“She has responsibility for the budget.”
“He accepted responsibility for making the error.”
The noun can correctly take of when identifying its holder:
“The safety of the building is the responsibility of the owner.”
That structure does not support “The owner is responsible of maintenance.”
Synonyms
Closest alternatives for responsible for depend on meaning:
- accountable for
- answerable for
- in charge of
- charged with
- to blame for
- the cause of
These choices are not interchangeable in every sentence. In charge of emphasizes control, while to blame for emphasizes fault.
Closest plain alternatives for evaluative responsible of include:
- sensible of you
- mature of you
- prudent of you
- a responsible thing for you to do
A complete rewrite often sounds more natural than a direct replacement.
Example Sentences
Responsible For
“Ella is responsible for the budget.”
“He is responsible for his younger brother.”
“They are responsible for preparing the room.”
“A damaged cable was responsible for the outage.”
“The court held the company responsible for the loss.”
“The director is ultimately responsible for the decision.”
Responsible Of
“That was responsible of you.”
“It was responsible of her to save the receipts.”
“It would be responsible of the team to verify the figures.”
These examples evaluate conduct rather than assign duties.
Word History
The relevant history belongs to the adjective responsible, not to either complete phrase as a separate entry.
The word entered English through French and has been used for several centuries. Its history does not independently explain why modern English selects for in accountability structures.
Both target constructions use the same adjective. Their difference comes from sentence structure and meaning, not separate origins.
Phrases Containing
Common patterns with responsible for include:
- be responsible for
- feel responsible for
- hold someone responsible for
- directly responsible for
- primarily responsible for
- financially responsible for
- legally responsible for
- responsible for doing something
Valid patterns with responsible of include:
- responsible of you
- responsible of him
- responsible of her
- it was responsible of someone to act
- that was responsible of someone
Do not use phrases such as responsible of the project, responsible of managing, or responsible of the department for ordinary duties.
FAQ
Is “responsible of” grammatically correct?
It can be correct when evaluating someone’s behavior: “That was responsible of you.” Use responsible for before a duty, action, cause, or result.
Should I say “responsible for” or “responsible of the project”?
Say responsible for the project: “Nina is responsible for the project.” The project is her assigned duty.
Can I say “responsible of you”?
Yes, when you mean that someone acted sensibly or maturely: “It was responsible of you to report the problem.”
Is “responsible for” followed by a verb?
Use a gerund when an action follows: “He is responsible for managing the account,” not “responsible for manage.”
What is the difference between “responsible for” and “responsible to”?
For introduces a duty, cause, or result. To identifies the person or authority someone answers to: “She is responsible to the board for financial reporting.”
Is “responsibility of” correct?
Yes. It is a noun construction: “Maintenance is the responsibility of the owner.” It does not make “The owner is responsible of maintenance” correct.
Use responsible for for duties, care, causes, actions, results, credit, and blame. Preserve responsible of + person only when describing that person’s action as sensible or mature. The two structures serve different purposes and cannot replace each other.
Conclusion
Use responsible for when talking about a duty, task, person, result, cause, or blame. This is the standard and most common form in American English.
Use responsible of only in the pattern “It was responsible of someone to do something.” In this structure, responsible describes a person’s sensible, careful, or mature action.
The two expressions are not interchangeable. When you are unsure, responsible for is usually the correct choice.
Examples:
- Maya is responsible for preparing the weekly report.
- The storm was responsible for the power outage.
- It was responsible of Maya to check the figures twice.
Remember the simple rule: responsible for connects responsibility to something, while responsible of evaluates someone’s behavior.
