Answer:
1- She studies 3 languages.(Simple Present)
2- They're playing in the garden.(Present continuous)
3- Her daughter went to Las Vegas last year.(simple past)
4-His mom's cooking now.(present continuous)
5- Her friends love reading novels.(simple present)
6- those children were sleeping under the tree.(past continuous)
7- She's been to Brazil twice.(present perfect)
8- He'll be here in ten minutes.(simple future)
9- They're going to bring the soda.(present continuous)
10- Martin's brothers are in 3rd grade.(simple present)
11- he was at school 5 minutes ago.(simple past)
12- They've seen that movie 5 times.(past perfect)
Negative Form:
1. She doesn’t study 3 languages
2. They aren’t playing in the garden
3. Her daughter didn’t go to Las Vegas last year
4. His mom is not cooking now
5. Her friends don’t love reading novels
6. Those children weren’t sleeping under the tree
7. She hasn’t been to Brazil twice
8. He will not be here in ten minutes
9. They aren’t going to bring the soda
10. Martin’s brothers aren’t in 3rd grade
11. He wasn’t at school five minutes ago
12. They haven’t seen that movie 5 times
Interrogative Form:
1. Does she study 3 languages?
2. Are they playing in the garden?
3. Did her daughter go to Las Vegas last year?
4. Is his mom cooking now?
5. Does her friends love reading novels?
6. Were those children sleeping under the tree?
7. Has she been to Brazil twice?
8. Will he be here in 10 minutes?
9. Are they going to bring the soda?
10. Are Martin’s brothers in 3rd grade?
11. Was he at school 5 minutes ago?
12. Haven’t they seen that movie 5 times?
Explanation:
Changing into negative form is very easy we just have to change the verb of the given sentence in to negative form like 'are as aren't; is as isn't; has been to hasn't been' etc., we just have to add not to the verb given in the sentence.
There are few rules for changing sentences to interrogative form.
1. Sentence is in affirmative, change it into negative interrogative. If sentence is in negative then change it in to positive.
2.If there is no verb then we have to use do, does, did, don't, doesn't, didn't in the interrogative sentence.
3.Always move the helping verb to first position while changing to interrogative form.