USED TO, TO BEGET USED TO
● USED TO + VERB: THƯỜNG HAYĐÃTỪNG.CHỈMỘTTHÓIQUEN,MỘT
HÀNHĐỘNGTHƯỜNGXUYÊNXẢYRATRONGQUÁKHỨ.
EX: WHEN DAVID WAS YOUNG, HE USED TO SWIM ONCE A DAY. (PAST
TIME HABIT)
NGHI VẤN: DID + S + USED TO + VERB = USED + S + TO + V.
PHỦ ĐỊNH: S + DIDNT + USED TO + VERB = S + USED NOT TO[r]