gotten
gotten — verb
1. the form of the verb 'get' that follows 'have', 'has', or 'had' to build perfect
the form of the verb 'get' that follows 'have', 'has', or 'had' to build perfect-tense expressions. It is the usual past participle in American English; British English uses 'got' instead for this purpose. For instance: 'The weather has gotten colder this week' (US) — a British speaker would say 'The weather has got colder this week'.
Lucía has gotten much better at playing the piano since she started taking lessons.
pattern: has gotten + comparative adjective (better)
Asher has gotten used to the cold weather after moving to Canada last year.
pattern: has gotten + used to + noun phrase
Élise has gotten a lot of support from coworkers during a difficult period.
The report has finally gotten finished after weeks of hard work by the team.
文法句型
have/has gotten + comparative adjective
have/has gotten + used to + noun phrase
have/has gotten + past participle (passive construction)
用法筆記
This sense is the standard past participle in American English for nearly all meanings of 'get'. In British English, 'got' fills this role instead (e.g. 'She has got promoted'). However, both varieties use 'have got' to mean 'possess' or 'must' — and in that fixed expression 'gotten' never appears, even in US English. British English does preserve 'gotten' in one fossilized phrase: 'ill-gotten gains'.