1. have learnt
`⇒` $\text{S + have/has + V-pp +....+ for +....}$
2. Has played
`⇒` $\text{S + have/has + V-pp +...+ since +....}$
3. hasn't rain
4. haven't seen
`⇒` $\text{S + have/has + V-pp +....+ yet}$
5. have studied
6. has worked
7. has seen
`⇒` $\text{S + have/has + V-pp +....+ before}$
8. has been
9. have had
10. has played
#Mon
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