$\text{1.}$ doesn't study
$\text{2.}$ has
$\text{→}$ today chia HTTD nhưng đây ko phải sự việc ngay lúc này
$\text{3.}$ have
$\text{→}$ usually chia HTD
$\text{4.}$ doesn't study
$\text{→}$ never chia HTD
$\text{5.}$ teaches
$\text{→}$ often chia HTD
$\text{6.}$ likes
$\text{7.}$ washes
$\text{→}$ every day chia HTD
$\text{8.}$ don't have
$\text{→}$ every morning chia HTD
$\text{* HTD:}$
$\text{(+)}$ S + V<s,es>
$\text{(-)}$ S + don't/ doesn't + V.