`1,` I have written the novel for 3 months.

`2,` He has read the novel since last night.

`3,` They have started their journey early since in the morning.

`4,` I started learning Spanish two years ago.

`5,` She has worked here since 2010.

`6,` They started playing football when they were children.

`7,`  I have felt better since after the medicine.

`8,` He started driving when he got his license.

`9,`  They have built the house since last month.

`10,` We have watced the series since Monday.

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

`@`$\text{Kiến thức :}$

`-` $\text{ S + last + Ved / V2 + time + ago / in + mốc thời gian / when + clause}$

`=` $\text{S + have / has + not + Ved / V3 + for / since}$

`=` $\text{It's + time + since + S + last + Ved / V2}$

`=` $\text{The last time + S + Ved / V2 + was + time + ago}$

`-` $\text{This is the first time + S + have / has + Ved / V3}$

`=` $\text{ S + have / has + never + Ved / V3 + before}$

`-` $\text{S + started / began + V-ing / to V + time + ago / in + mốc thời gian / when + clause}$

`=` $\text{S + have / has + Ved / V3 + for / since}$