`1` What are you going to do for the weekend ? ( Thì tương lai gần : What + is/ are / am + S + going to - V ? ) 

`2` Peter could skate when he was 13 ( knew hơe to skae = could skate : biết trượt tuyết ) 

`3`  They haven't visited Europe for two years ( thì hiện tại hoàn thành : S + hasn't / haven't + Vpp+ ...for + khoảng thời gian /since + mốc thời gian ) 

`4` Humans are more intelligent than robots ( S1 + is / are / am + more + adj / adj er + than + S2 ) 

`5` When did you learn English ? ( when did + S + V ?) 

@ Dorris

1.What are you going to do for the weekend ?
( tương lai gần : What + is/ are / am + S + going to +V ? ) 

2.Peter could skate when he was 13

( knew how to skae = could skate : có thể trượt tuyết ) 

3. They haven't visited Europe for two years

( hiện tại hoàn thành : S + hasn't / haven't + V3/ed+ for + Khoảng time  hay since + mốc time) 

4.Humans are more intelligent than robots

( So sanh hơn:S1 + is / are / am + more + adj / adj er + than + S2 ) 

5. When did you learn English ?

( when did + S + V ?:Khi nào bạn làm vc j đó)