mostly
mostly — adverb
1. used to say that something is true about the largest part of a group, amount, or
used to say that something is true about the largest part of a group, amount, or situation, but not necessarily all of it
The children in this class are mostly seven years old.
mostly after 'be' with complement
Anya mostly takes the bus when she goes into the city.
mostly before main verb
The old houses on this street were mostly built in the 1920s.
I agree with your point, but mostly I think we should wait a little longer.
Heloísa's meals during the week are mostly rice and vegetables.
- mainly
the closest synonym; interchangeable in almost all contexts
- largely
slightly more formal; emphasises scale rather than simple majority
- chiefly
more formal; often used to list the most important reasons or components
- for the most part
a longer, slightly more conversational phrase covering the same meaning
文法句型
mostly before main verb
mostly after 'be'
mostly at start of clause for contrast
用法筆記
Unlike 'almost' or 'most of', 'mostly' refers to proportion or frequency, not near-completeness. It typically appears before the main verb but after the verb 'be'. In formal writing, 'mostly' is common; 'chiefly' or 'largely' are slightly more formal alternatives.