3. Affirmative sentences Pay attention to the part of the verbs. Don't confuse them with those of the past simple. Here you have to write the verbs in participle. has (=he's, etc.) Finished Lost Done Been Traveled, Etc. He /she / it Have (= I've, etc.) I / we / you / they
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5. Negative sentences Has not (hasn't) She/he/it Finished Lost Done Been traveled, etc. Have not (=haven't) I/we/you/they
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7. Interrogative sentences She/he/it Has Finished? Lost? Done? Been? Traveled? Etc. I/you/we/they Have