SIMPLE PRESENT
Affirmative
- I buy
- you buy
- she/he/it buys
- we buy
- you buy
- they buy
Negative
- I do not buy
- you do not buy
- she/he/it does not buy
- we do not buy
- you do not buy
- they do not buy
Interrogative
- do I buy ?
- do you buy ?
- does she/he/it buy ?
- do we buy ?
- do you buy ?
- do they buy ?
Negative - Interrogative
- do I not buy ?
- do you not buy ?
- does she/he/it not buy ?
- do we not buy ?
- do you not buy ?
- do they not buy ?
PRESENT CONTINUOUS
Affirmative
- I am buying
- you are buying
- she/he/it is buying
- we are buying
- you are buying
- they are buying
Negative
- I am not buying
- you are not buying
- she/he/it is not buying
- we are not buying
- you are not buying
- they are not buying
Interrogative
- am I buying ?
- are you buying ?
- is she/he/it buying ?
- are we buying ?
- are you buying ?
- are they buying ?
Negative - Interrogative
- am I not buying ?
- are you not buying ?
- is she/he/it not buying ?
- are we not buying ?
- are you not buying ?
- are they not buying ?
SIMPLE PAST
Affirmative
- I bought
- you bought
- she/he/it bought
- we bought
- you bought
- they bought
Negative
- I did not buy
- you did not buy
- she/he/it did not buy
- we did not buy
- you did not buy
- they did not buy
Interrogative
- did I buy ?
- did you buy ?
- did she/he/it buy ?
- did we buy ?
- did you buy ?
- did they buy ?
Negative - Interrogative
- did I not buy ?
- did you not buy ?
- did she/he/it not buy ?
- did we not buy ?
- did you not buy ?
- did they not buy ?
PRESENT PERFECT
Affirmative
- I have bought
- you have bought
- she/he/it has bought
- we have bought
- you have bought
- they have bought
Negative
- I have not bought
- you have not bought
- she/he/it has not bought
- we have not bought
- you have not bought
- they have not bought
Interrogative
- have I bought ?
- have you bought ?
- has she/he/it bought ?
- have we bought ?
- have you bought ?
- have they bought ?
Negative - Interrogative
- have I not bought ?
- have you not bought ?
- has she/he/it not bought ?
- have we not bought ?
- have you not bought ?
- have they not bought ?
PAST CONTINUOUS
Affirmative
- I was buying
- you were buying
- she/he/it was buying
- we were buying
- you were buying
- they were buying
Negative
- I was not buying
- you were not buying
- she/he/it was not buying
- you were not buying
- you were not buying
- they were not buying
Interrogative
- was I buying ?
- were you buying ?
- was she/he/it buying ?
- were we buying ?
- were you buying ?
- were they buying ?
Negative - Interrogative
- was I not buying ?
- were you not buying ?
- was she/he/it not buying ?
- were we not buying ?
- were you not buying ?
- were they not buying ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been buying
- you have been buying
- she/he/it has been buying
- we have been buying
- you have been buying
- they have been buying
Negative
- I have not been buying
- you have not been buying
- she/he/it has not been buying
- we have not been buying
- you have not been buying
- they have not been buying
Interrogative
- have I been buying ?
- have you been buying ?
- has she/he/it been buying ?
- have we been buying ?
- have you been buying ?
- have they been buying ?
Negative - Interrogative
- have I not been buying ?
- have you not been buying ?
- has she/he/it not been buying ?
- have we not been buying ?
- have you not been buying ?
- have they not been buying ?
PAST PERFECT
Affirmative
- I had bought
- you had bought
- she/he/it had bought
- we had bought
- you had bought
- they had bought
Negative
- I had not bought
- you had not bought
- she/he/it had not bought
- we had not bought
- you had not bought
- they had not bought
Interrogative
- had I bought ?
- had you bought ?
- had she/he/it bought ?
- had we bought ?
- had you bought ?
- had they bought ?
Negative - Interrogative
- had I not bought ?
- had you not bought ?
- had she/he/it not bought ?
- had we not bought ?
- had you not bought ?
- had they not bought ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been buying
- you had been buying
- she/he/it had been buying
- we had been buying
- you had been buying
- they had been buying
Negative
- I had not been buying
- you had not been buying
- she/he/it had not been buying
- we had not been buying
- you had not been buying
- they had not been buying
Interrogative
- had I been buying ?
- had you been buying ?
- had she/he/it been buying ?
- had we been buying ?
- had you been buying ?
- had they been buying ?
Negative - Interrogative
- had I not been buying ?
- had you not been buying ?
- had she/he/it not been buying ?
- had we not been buying ?
- had you not been buying ?
- had they not been buying ?