Khi Nao Dung To V Khi Nao Dung Ving

C u Tr c Th ng D ng V i Try Try To V Hay Try V ing

Cho M nh H i L C Ai Bi t Ph n Bi t Khi N o D ng To V V Ving Kh ng

To V V Ving N m V ng C u Tr c C B n Cho N n T ng Ch c Ch n

Khi N o D ng To Khi N o D ng To V V Ving C ch D ng B i T p

Remember To V Hay Ving C ch S D ng C u Tr c Remember

Khi N o D ng Was Were H ng D n C ch D ng Was V Were

Khi N o D ng Was Were C ch D ng Tr ng H p c Bi t

V Inf C ch D ng C u Tr c V V D Chi Ti t Trong Ti ng Anh

Tr c Ving L G Kh m Ph C ch D ng ng T V ing Trong Ti ng Anh

C ch D ng Will H ng D n Chi Ti t V B i T p V n D ng