18 make up sentences using the present perfect tense.
1) my mother/to give/me/money/to buy a bottle of milk.
2) the car/not to stop at the traffic lights.
3) you/to see/this film/yet?
4) where/they/to go?
5) they/not to leave/the house/yet.
6) what music/she/to choose/for the party?
7) your parents/to return/from the tour/yet?
8) mr gate/to crash/his new car.
9) how many books/he/to buy?
10) tony/to meet/his lawyer/today? ​

1) My mother has given me money to buy a bottle of milk.
To form the sentence in the present perfect tense, we use the auxiliary verb "has" for the third person singular (she) and the past participle of the main verb "given." The word order in the sentence remains the same: subject (my mother) + auxiliary verb (has) + main verb (given) + object (me money) + infinitive (to buy) + noun (a bottle of milk).

2) The car has not stopped at the traffic lights.
Here, we use the negative form of the present perfect tense. We add the auxiliary verb "has" for the third person singular (the car) and the word "not" after it. The main verb "stopped" remains in the past participle form. The word order in the sentence is subject (the car) + auxiliary verb (has not) + main verb (stopped) + preposition (at the traffic lights).

3) Have you seen this film yet?
In this sentence, we use the auxiliary verb "have" for the second person singular (you) and the past participle form of the main verb "seen." The word order is auxiliary verb (have) + subject (you) + main verb (seen) + object (this film) + adverb (yet).

4) Where have they gone?
To form this sentence, we use the auxiliary verb "have" for the third person plural (they) and the past participle form of the main verb "gone." The word order is auxiliary verb (have) + subject (they) + main verb (gone) + interrogative word (where).

5) They have not left the house yet.
Similar to sentence 2, here we use the negative form of the present perfect tense. We add the auxiliary verb "have" for the third person plural (they) and the word "not" after it. The main verb "left" remains in the past participle form. The word order is subject (they) + auxiliary verb (have not) + main verb (left) + object (the house) + adverb (yet).

6) What music has she chosen for the party?
In this sentence, we use the auxiliary verb "has" for the third person singular (she) and the past participle form of the main verb "chosen." The word order is interrogative word (what) + subject (she) + auxiliary verb (has) + main verb (chosen) + object (music) + preposition (for the party).

7) Have your parents returned from the tour yet?
Here, we use the auxiliary verb "have" for the third person plural (your parents) and the past participle form of the main verb "returned." The word order is auxiliary verb (have) + possessive adjective (your) + subject (parents) + main verb (returned) + preposition (from the tour) + adverb (yet).

8) Mr. Gate has crashed his new car.
To form this sentence, we use the auxiliary verb "has" for the third person singular (Mr. Gate) and the past participle form of the main verb "crashed." The word order is subject (Mr. Gate) + auxiliary verb (has) + main verb (crashed) + possessive adjective (his) + adjective (new) + noun (car).

9) How many books has he bought?
In this sentence, we use the auxiliary verb "has" for the third person singular (he) and the past participle form of the main verb "bought." The word order is interrogative word (how many) + subject (he) + auxiliary verb (has) + main verb (bought) + object (books).

10) Has Tony met his lawyer today?
Here, we use the auxiliary verb "has" for the third person singular (Tony) and the past participle form of the main verb "met." The word order is auxiliary verb (has) + subject (Tony) + main verb (met) + possessive adjective (his) + noun (lawyer) + adverb (today).