### SIMPLE PRESENT

#### Affirmative

- I subtract
- you subtract
- she/he/it subtracts
- we subtract
- you subtract
- they subtract

#### Negative

- I do not subtract
- you do not subtract
- she/he/it does not subtract
- we do not subtract
- you do not subtract
- they do not subtract

#### Interrogative

- do I subtract ?
- do you subtract ?
- does she/he/it subtract ?
- do we subtract ?
- do you subtract ?
- do they subtract ?

#### Negative - Interrogative

- do I not subtract ?
- do you not subtract ?
- does she/he/it not subtract ?
- do we not subtract ?
- do you not subtract ?
- do they not subtract ?

### PRESENT CONTINUOUS

#### Affirmative

- I am subtracting
- you are subtracting
- she/he/it is subtracting
- we are subtracting
- you are subtracting
- they are subtracting

#### Negative

- I am not subtracting
- you are not subtracting
- she/he/it is not subtracting
- we are not subtracting
- you are not subtracting
- they are not subtracting

#### Interrogative

- am I subtracting ?
- are you subtracting ?
- is she/he/it subtracting ?
- are we subtracting ?
- are you subtracting ?
- are they subtracting ?

#### Negative - Interrogative

- am I not subtracting ?
- are you not subtracting ?
- is she/he/it not subtracting ?
- are we not subtracting ?
- are you not subtracting ?
- are they not subtracting ?

### SIMPLE PAST

#### Affirmative

- I subtracted
- you subtracted
- she/he/it subtracted
- we subtracted
- you subtracted
- they subtracted

#### Negative

- I did not subtract
- you did not subtract
- she/he/it did not subtract
- we did not subtract
- you did not subtract
- they did not subtract

#### Interrogative

- did I subtract ?
- did you subtract ?
- did she/he/it subtract ?
- did we subtract ?
- did you subtract ?
- did they subtract ?

#### Negative - Interrogative

- did I not subtract ?
- did you not subtract ?
- did she/he/it not subtract ?
- did we not subtract ?
- did you not subtract ?
- did they not subtract ?

### PRESENT PERFECT

#### Affirmative

- I have subtracted
- you have subtracted
- she/he/it has subtracted
- we have subtracted
- you have subtracted
- they have subtracted

#### Negative

- I have not subtracted
- you have not subtracted
- she/he/it has not subtracted
- we have not subtracted
- you have not subtracted
- they have not subtracted

#### Interrogative

- have I subtracted ?
- have you subtracted ?
- has she/he/it subtracted ?
- have we subtracted ?
- have you subtracted ?
- have they subtracted ?

#### Negative - Interrogative

- have I not subtracted ?
- have you not subtracted ?
- has she/he/it not subtracted ?
- have we not subtracted ?
- have you not subtracted ?
- have they not subtracted ?

### PAST CONTINUOUS

#### Affirmative

- I was subtracting
- you were subtracting
- she/he/it was subtracting
- we were subtracting
- you were subtracting
- they were subtracting

#### Negative

- I was not subtracting
- you were not subtracting
- she/he/it was not subtracting
- you were not subtracting
- you were not subtracting
- they were not subtracting

#### Interrogative

- was I subtracting ?
- were you subtracting ?
- was she/he/it subtracting ?
- were we subtracting ?
- were you subtracting ?
- were they subtracting ?

#### Negative - Interrogative

- was I not subtracting ?
- were you not subtracting ?
- was she/he/it not subtracting ?
- were we not subtracting ?
- were you not subtracting ?
- were they not subtracting ?

### PRESENT PERFECT CONTINUOUS

#### Affirmative

- I have been subtracting
- you have been subtracting
- she/he/it has been subtracting
- we have been subtracting
- you have been subtracting
- they have been subtracting

#### Negative

- I have not been subtracting
- you have not been subtracting
- she/he/it has not been subtracting
- we have not been subtracting
- you have not been subtracting
- they have not been subtracting

#### Interrogative

- have I been subtracting ?
- have you been subtracting ?
- has she/he/it been subtracting ?
- have we been subtracting ?
- have you been subtracting ?
- have they been subtracting ?

#### Negative - Interrogative

- have I not been subtracting ?
- have you not been subtracting ?
- has she/he/it not been subtracting ?
- have we not been subtracting ?
- have you not been subtracting ?
- have they not been subtracting ?

### PAST PERFECT

#### Affirmative

- I had subtracted
- you had subtracted
- she/he/it had subtracted
- we had subtracted
- you had subtracted
- they had subtracted

#### Negative

- I had not subtracted
- you had not subtracted
- she/he/it had not subtracted
- we had not subtracted
- you had not subtracted
- they had not subtracted

#### Interrogative

- had I subtracted ?
- had you subtracted ?
- had she/he/it subtracted ?
- had we subtracted ?
- had you subtracted ?
- had they subtracted ?

#### Negative - Interrogative

- had I not subtracted ?
- had you not subtracted ?
- had she/he/it not subtracted ?
- had we not subtracted ?
- had you not subtracted ?
- had they not subtracted ?

### PAST PERFECT CONTINUOUS

#### Affirmative

- I had been subtracting
- you had been subtracting
- she/he/it had been subtracting
- we had been subtracting
- you had been subtracting
- they had been subtracting

#### Negative

- I had not been subtracting
- you had not been subtracting
- she/he/it had not been subtracting
- we had not been subtracting
- you had not been subtracting
- they had not been subtracting

#### Interrogative

- had I been subtracting ?
- had you been subtracting ?
- had she/he/it been subtracting ?
- had we been subtracting ?
- had you been subtracting ?
- had they been subtracting ?

#### Negative - Interrogative

- had I not been subtracting ?
- had you not been subtracting ?
- had she/he/it not been subtracting ?
- had we not been subtracting ?
- had you not been subtracting ?
- had they not been subtracting ?