過去分詞にbuild
答built
build → built → built
過去分詞にtake
答taken
take → took → taken
過去分詞にeat
答eaten
eat → ate → eaten
現在完了の文にThey ( ) their homework. (finish)
答have finished
完了の用法。have + finished
現在完了の文にMy sister ( ) her room. (clean)
答has cleaned
完了の用法。has + cleaned
現在完了の文にI ( ) English for six years. (study)
答have studied
継続の用法。have + studied
否定文にKen has been busy since yesterday.
答Ken has not been busy since yesterday.
has のうしろに not
否定文にWe have washed the car.
答We have not washed the car.
have のうしろに not
疑問文に→Yesで答えるYou have seen this movie before.
答Have you seen this movie before? ― Yes, I have.
Have を主語の前に。答えの主語は I
疑問文に→Yesで答えるShe has eaten natto once.
答Has she eaten natto once? ― Yes, she has.
Has を主語の前に。答えの主語は she