help
helped
I / play / football / before.
I have played football before.
She / live / here all her life
She hasn't lived here all her life
you / walk / the dog / ?
Have you walked the dog?
have
had
They / buy / some cheese
They have bought some cheese
They / study / for the Science exam.
They have not studied for the Science exam
you / ever / call / police ?
Have you ever called police?
play
played
It's incredible! You / study / Chinese, Japanese, and Korean during these 2 years
It's incredible! You have studied Chinese, Japanese, and Korean during these 2 years.
Susan and Mark / never / make a cake
Susan and Mark have never made a cake
you / ever / be / to Spain?
Have you ever been to Spain?
wash
washed
I / catch / a thief
I have caught a thief
My / sister / do / her English homework
My sister has not done (hasn’t done) her English homework
she ever / study / German?
Has she ever studied German?
catch
caught
She / visit / China every year since 2010
She has visited China every year since 2010
I / buy / anything today
I haven't bought anything today
Have /you / ever / travel to the US / ?
Have you ever travelled to the US?