`-` Thì HTĐ :

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

`+` PĐ : S + don't / doesn't + V `-` S + isn't / 'm not / aren't + adj / n

`+` NV : Do / Does + S + V ? `-` Is / Am / Are + S + adj / n ?

`=>` `DHNB` : usually , often , sometimes , never , always , every , ...

`*` I `+` am ( not ) `-` V-inf

`*` He , She , It `+` is ( not ) `-` Vs / es

`*` You , We , They `+` are ( not ) `-` V-inf

`=>` Dùng để diễn tả hành động xảy ra ở Hiện tại hoặc nói về sự thật

`*` Các Trạng từ chỉ Tần suất thường đứng trước Động từ thường và đứng sau Trợ Động từ , Động từ Tobe

`Ex.1`.

`1`.My mother usually goes to the supermarket on Saturdays

`2`.Most children rarely get up early on the weekends

`3`.She is always patient when teaching her students

`4`.Linda sometimes cooks dinner for her family

`5`.He often jogs in the morning

`6`.She is seldom sad

`7`.My sister never misses an episode of the Kid's Talents programme

`8`.My father doesn't frequently go fishing

`9`.I am always excited to see her

`10`.He hardly ever smiles

`Ex.2`.

`1`.is

`2`.starts

`3`.departs

`4`.leaves

`5`.is

`6`.start

`7`.ends

`8`.doesn't leave

`9`.is

`10`.finish

`\text{# TF}`