過去分詞にteach
答taught
teach → taught → taught
過去分詞にread
答read
read → read → read
過去分詞にbuild
答built
build → built → built
現在完了の文にWe ( ) the car. (wash)
答have washed
完了の用法。have + washed
現在完了の文にHe ( ) the letter. (write)
答has written
完了の用法。has + written
現在完了の文にMy father ( ) here for twenty years. (work)
答has worked
継続の用法。has + worked
否定文にI have lost my key.
答I have not lost my key.
have のうしろに not
否定文にShe has taught us math for two years.
答She has not taught us math for two years.
has のうしろに not
疑問文に→Yesで答えるThey have played the game many times.
答Have they played the game many times? ― Yes, they have.
Have を主語の前に。答えの主語は they
疑問文に→Yesで答えるShe has known him since 2020.
答Has she known him since 2020? ― Yes, she has.
Has を主語の前に。答えの主語は she