( )内の語を使ってWe ( ) for the key for an hour. (look)
答have been looking
have been + looking
( )内の語を使ってTom ( ) dinner for two hours. (cook)
答has been cooking
has been + cooking
( )内の語を使ってI ( ) in the park for two hours. (run)
答have been running
have been + running
( )内の語を使ってHe ( ) the guitar since this morning. (play)
答has been playing
has been + playing
現在完了進行形にShe is studying in her room. (for three hours を加えて)
答She has been studying in her room for three hours.
has been + studying
現在完了進行形にThey are talking on the phone. (for an hour を加えて)
答They have been talking on the phone for an hour.
have been + talking
現在完了進行形にKen is waiting for the bus. (for thirty minutes を加えて)
答Ken has been waiting for the bus for thirty minutes.
has been + waiting
否定文にWe have been practicing the song since last week.
答We have not been practicing the song since last week.
have のうしろに not
否定文にMy father has been washing the car for an hour.
答My father has not been washing the car for an hour.
has のうしろに not
疑問文に→Yesで答えるYuki has been reading that book since yesterday.
答Has Yuki been reading that book since yesterday? ― Yes, she has.
Has を主語の前に出す