${1.}$ I spend a lot of time doing the housework every day.

→ S + spend(s)/spent + time + V_ing: Ai đó dành khoảng thời gian bao lâu làm gì

= It + takes/ took + time + to_V

${2.}$ Learning English is very important

→ It + is/was + Adj + to_V = V_ing + is/was + Adj

${3.}$ I am interested in watching TV.

→ enjoy + V_ing = be interested + V_ing: cảm thấy thích thú khi làm việc gì

${4.}$ All the windows need to be opened.

          All the windows need opening.

→ bị động với need: S + need + to be + V3/ed 

                                 S + need + V_ing

${5.}$ Her house needs to be rebuilt.

          Her house needs rebuilding.

${6.}$ It's dangerouse to go out alone at night.

${7.}$ He loves talking with children.

→ love + V_ing: yêu thích làm việc gì

${8.}$ Would you mind opening the door for me?

→ Would you mind + V_ing ..?: Bạn có phiền khi làm việc gì đó không?

1 I spend a lot of time doing the housework every day

_ S + spend(s)/spent + time + Ving + ......

2 Learning English is very important 

_ V đứng đầu - có to be => VIng

3 I am interested in enjoy watching TV

_ be interested in = enjoy + Ving

4 All the windows need to be opened

_ need + to be + PII

5 Her house needs to be rebuilt

_ need + to be + PII

6 It 's dangerous to go out alone at night

_ It's + adj + to V : Rất ...... 

7 He loves talking with children.

_ love + V_ing: yêu thích làm gì

8 Would you mind opening the door for me?

_ mind + Ving