Noun Clause

1. How pet is feeling today?

• I don't know how pet is feeling today.

2. Why did they leave the country is a secret?

• I wonder why they left the country is a secret.

3. Is there life on other planets?

• I don't know what there life in other planets.

4. Did you leave your dictionary at the library?

• I don't know where i left my dictionary at the library.

5. Does it belong to you?

• I don't know why it belongs to me.

Yes/No Question

Definition
	A yes-no question is a question for which an answer of yes or no is acceptable.
	In some languages, a yes-no question is formally distinguished by features, such as
	rising sentence-final intonation a sentence-initial or sentence-final particle verb morphology a difference of word order, such as the placement of the verb closer to the beginning of the sentence than in the declarative sentence, and an interrogative clitic that attaches to the item in the sentence that is being questioned. example : 1. Do you love me? Yes, I do/No, I don’t 2. Are you sleepy? Yes, I am?No, I am not. 3. Can they climb the wall? Yes, they can?No, yhey can’t. 4. Will you help me? Yes, I will/No, I will not Here is an overview of Yes No questions in a wide variety of tenses: Present Simple Do / Does + S + Verb? - (Do you like ice cream?) Yes, I do. No, I don't. Yes, he / she / it does. No, he / she / it doesn't. Yes, we / you / they do. No, we / you / they don't. Present Continuous Am / Is / Are + S + Verb + ing? - (Are they studying English?) Yes, I am. No, I'm not. Yes, he / she / it is. No, he / she / it isn't. Yes, we / you / they are. No, we / you / they aren't. Present Perfect Have / Has + S + Past Participle? - (Has she lived here long?) Yes, I have. No, I haven't. Yes, he / she / it has. No, he / she / it hasn't. Yes, we / you / they have. No, we / you / they haven't. Past Simple Did + S + Verb? - (Did she stay in New York?) Yes, I / you / he / she / it / we / you /they did. No, I I / you / he / she / it / we / you /they didn't. Past Continuous Was / Were + S + Verb + ing? - (Were they working at three in the afternoon?) Yes, I was. No, I wasn't. Yes, he / she / it was. No, he / she / it wasn't. Yes, we / you / they were. No, we / you / they weren't. Future Simple Will + S + Verb? - (Will you come to the party?) Yes, I / you / he / she / it / we / you /they will. No, I I / you / he / she / it / we / you /they won't. Future with Going to Am / Is / Are + S + going to + Verb? - (Is he going to attend the meeting?) Yes, I am. No, I'm not. Yes, he / she / it is. No, he / she / it isn't. Yes, we / you / they are. No, we / you / they aren't.