4.05 Be Polite
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4.5.12 Present Perfect
English is complex 
Verbs have different forms in present and past.
| Let's see all of them!
You don't have to learn all now, just read them. You can open this unit any time to see the verbs and learn them slowly. |
All the forms are the same (they are the easy ones)
| Present | Past tense | Past participle |
| put | put | put |
| read | read | read |
| cost | cost | cost |
| cut | cut | cut |
| hurt | hurt | hurt |
| hit | hit | hit |
- Make sentences with two verbs.