`-` Thì HTĐ :

`+` KĐ : S + Vs / es `-` S + is / am / are + adj / n

`+` PĐ : S + don't / doesn't + V 

`+` NV : Do / Does + S + V ?

`=>` `DHNB` : always , often , usually , ...

`-` Thì HTTD :

`+` KĐ : S + is / am / are + V-ing

`+` PĐ : S + isn't / 'm not / aren't + V-ing

`+` NV : Is / Am / Are + S + V-ing ?

`=>` `DHNB` : now , at the moment , at present , ...

`11`.is

`12`.goes

`13`.are playing

`14`.has

`15`.are playing

`16`.watches

`17`.goes

`18`.are talking / eating

`19`.lives

`20`.Are ... playing ?

`\text{# TF}`

* Cấu trúc thì Hiện tại đơn 

(+) S + V(es/s)/ V

(-) S + don't/ doesn't + V 

(?) Do/ Does + S +V?

- DHNB: every, often,...

* Cấu trúc thì HIỆN TẠI TIẾP DIỄN

(+) S + am/is/are + V-ing 

(-) S + am not/ isn't/ aren't + V-ing 

(?) Am/ Are/Is + S + V-ing?

- DHNB: now,...

`11.` is

S-số ít + be `->` is

`12.` goes 

`13.` are playing 

`14.` has

`15.` are playing 

`16.` watches 

`17.` goes

`18.` are taking - eating 

`19.` lives 

`20.` Are some boys playing