Customary for is used for actions or behaviour that are usual for someone. Customary in refers to habits or traditions within a group, place, or culture.
Use customary for before a person or action: It is customary for guests to remove shoes. Use customary in when referring to a culture, organisation, or setting: It is customary in Japan to bow.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
This pattern shows what people normally do.
Use in with cultures, organisations, professions, or locations.
Customary can also be followed directly by an infinitive in formal English.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
Use for when talking about what people usually do.
✕ It is customary in guests to wait ✓ It is customary for guests to waitUse in with societies, organisations, and regions.
✕ customary for Japan ✓ customary in JapanCustomary to + verb sounds formal and limited.
✕ She is customary to drive home ✓ She usually drives homeAccustomed describes personal familiarity or habit.
✕ I am customary to cold weather ✓ I am accustomed to cold weatherChoose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Customary for refers to what people usually do, while customary in refers to traditions within a group or place.
It exists but sounds formal and limited. Other expressions are often more natural.
Yes. You can say customary practice, customary greeting, or customary procedure.
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