$\text{28.}$ will never forget - have just told

$\text{→}$ Tôi sẽ ko bao h quên

$\text{→}$ just chia HTHT

$\text{→}$ HTHT: S + have/ has + Ved/ P2

$\text{29.}$ are preparing

$\text{→}$ at the moment chia HTTD

$\text{→}$ HTTD: S + is/ are/ am + V-ing.

$\text{30.}$ had stayed - had ridden - had borrowed

$\text{→}$ the day before ⇒ Câu tường thuật

$\text{→}$ yesterday ⇒ the day before

$\text{→}$ QKD ⇒ QKHT

$\text{→}$ QKHT: S + had + Ved/ P2

$\text{31.}$ told - had visited

$\text{→}$ Câu tường thuật

$\text{→}$ yesterday chia QKD

$\text{→}$ QKD: S + Ved/ P1.

$\text{32.}$ has worked

$\text{→}$ so far chia HTHT

$\text{33.}$ was working

$\text{→}$ hd đang diễn ra thì có 1 hd khác xen vào 

$\text{→}$ hd đang diễn ra ⇒ QKTD, hd xen vào ⇒ QKD

$\text{→}$ QKTD: S + was/ were + V-ing.

$\text{34.}$ build - fly

$\text{→}$ sự thật hiển nhiên ⇒ HTD

$\text{→}$ HTD: S + V<s,es>

$\text{35.}$ lost - Can

$\text{→}$ Modal Vs + V<infi>

$\text{36.}$ hasn't smoked

$\text{→}$ for + khoảng tg chia HTHT

$\text{37.}$ arrived - has just gone

$\text{→}$ như câu $\text{33}$

$\text{38.}$ have - been

$\text{→}$ How long + HTHT?

$\text{39.}$ Have - received

$\text{→}$ yet chia HTHT

$\text{40.}$ joined - was

28. 28. will never forget - have just told → → Tôi sẽ ko bao h quên → → just chia HTHT → → HTHT: S + have/ has + Ved/ P2 29. 29. are preparing → → at the moment chia HTTD → → HTTD: S + is/ are/ am + V-ing. 30. 30. had stayed - had ridden - had borrowed → → the day before ⇒ Câu tường thuật → → yesterday ⇒ the day before → → QKD ⇒ QKHT → → QKHT: S + had + Ved/ P2 31. 31. told - had visited → → Câu tường thuật → → yesterday chia QKD → → QKD: S + Ved/ P1. 32. 32. has worked → → so far chia HTHT 33. 33. was working → → hd đang diễn ra thì có 1 hd khác xen vào → → hd đang diễn ra ⇒ QKTD, hd xen vào ⇒ QKD → → QKTD: S + was/ were + V-ing. 34. 34. build - fly → → sự thật hiển nhiên ⇒ HTD → → HTD: S + V 35. 35. lost - Can → → Modal Vs + V 36. 36. hasn't smoked → → for + khoảng tg chia HTHT 37. 37. arrived - has just gone → → như câu 33 33 38. 38. have - been → → How long + HTHT? 39. 39. Have - received → → yet chia HTHT 40. 40. joined - was