$\text{Form:}$

`@` Present simple:

`(+)` S + V(-s/es) + adv/O

`(-)` S + don't/doesn't + V(inf) + adv/O

`(?)` Do/Does + S + V(inf) + adv/O?

DHNB: trạng từ chỉ tần suất, ...

`@` Present continuous:

`(+)` S + am/is/are + V-ing + adv/O

`(-)` S + am/is/are + not + V-ing + adv/O

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

DHNB: at the moment, now, ...

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`1.` don't like

`2.` isn't studying

`3.` go

`4.` doesn't usually do

`5.` don't eat

`6.` don't study

`7.` Do you like

`8.` Does she go

`9.` Is he eating

`10.` are going

`11.` are studying

`12.` clean

`13.` works

`1.` don't like 

`2.` isn't studying

`3.` goes

`4.` doesn't do

`5.` don't eat 

`6.` don't study

`7.` Do you like

`8.` Does she go

`9.` Is he eating

`10.` are going

`11.` are studying

`12.` clean

`13.` works 

`----------`

`-` HTĐ:

`(+)` S `+` V_inf / V_s/es `+` O
`(-)` S `+` don't / doesn't `+` V_inf `+` O
`(?)` Do `/` Doesn't `+` S `+` V_inf `+` O?
`-` DHNB: every, always, usually, often, rarely,...

`-` HTTD:

`(+)` S `+` am/is/are `+` V_ing `+` O

`(-)` S `+` am/is/are `+` not `+` V_ing `+` O

`(?)` Am/Is/Are `+` S `+` V_ing `+` O?

`-` DHNB: now, at the moment, at present, right now,...