`16`/ has not had
`17`/ has not played
`18`/ havent had
`19`/ have not seen
`20`/ relized
`21`/ has gone
`22`/ have you known
`23`/ Have you taken
`25`/ has lived
`26`/ has lost
`27`/ has the milkman left / has left
`28`/ have bought
`29`/ has written
`30`/ have finished
Công thức thì hiện tại hoàn thành:
S + have / has(not) + v_III + ...
? ) Have / has + S + v_III + ....