FORMULA
| +/ - / ? |
| am/ is / are + Ving |
FORM
Affirmative sentences: am/is/are + Ving
| I | am | Ving | I am working |
| We | are | Ving | We are working |
| You | are | Ving | You are working |
| They | are | Ving | They are working |
| He | is | Ving | He is working |
| She | is | Ving | She is working |
| It | is | Ving | It is working |
Negative sentences: am/is/are + not + Ving
| I | am | not | Ving | I am not working |
| We | are | not | Ving | We are not working |
| You | are | not | Ving | You are not working |
| They | are | not | Ving | They are not working |
| He | is | not | Ving | He is not working |
| She | is | not | Ving | She is not working |
| It | is | not | Ving | It is not working |
I am not = I'm not (not: I amn't !)
are not = aren't
is not = isn't
Interrogative sentences: ... am/is/are + S + Ving … ?
| (QW) | am/is/are | S | Ving | (what/where/when) | ? |
| Am | I | working | ? | ||
| Are | we | working | ? | ||
| Where | are | you | working | now | ? |
| Are | they | working | at the moment | ? | |
| Is | he | working | ? | ||
| Why | is | she | working | this week | ? |
| Is | it | working | ? |
Short answers:
Yes, S + am / is / are.
No, S + isn't/aren't. (No, I'm not.)
| Yes, | I | am. | No, | I'm | not. | |
| Yes, | we | are. | No, | we | aren't. | |
| Yes, | you | are. | No, | you | aren't. | |
| Yes, | they | are. | No, | they | aren't. | |
| Yes, | he | is. | No, | he | isn't. | |
| Yes, | she | is. | No, | she | isn't. | |
| Yes, | it | is. | No, | it |
isn't.
|
Note: In short answers we use pronouns (I, we, you, they, he, she, it)
- Is Mary working this week?
- No, she isn't.
(Not: No, Mary isn't.)
***
V - verb (the infinitive without "to")
S - subject
QW - question word
