`-` S + have / has + VpII + for time / since timeline : Đã làm gì ...

`-` S + have / has + never + VpII + before : Chưa từng làm gì trước đây

`-` This is / It is + the first time + S + have / has + VpII : Đây là lần đầu tiên

`-` S + started / began + V-ing / to V : Bắt đầu làm gì

`10`.She started teaching the children in this remote village five months ago

`11`.It's the first time we have eaten this kind of food

`12`.I have never seen this film before

`13`.He has never gone abroad before

`14`.She has driven for `1` month

`15`.We have eaten since it started to rain

`16`.This is the first time they have heard such a thing

`17`.It has rained since `2` o'clock

`18`.It is the first time I have been to the ballet before

`19`.This is the first time I have seen a dirtier-looking dog

`\text{# TF}`