SIMPLE PRESENT
Affirmative
- I call on
- you call on
- she/he/it calls on
- we call on
- you call on
- they call on
Negative
- I do not call on
- you do not call on
- she/he/it does not call on
- we do not call on
- you do not call on
- they do not call on
Interrogative
- do I call on ?
- do you call on ?
- does she/he/it call on ?
- do we call on ?
- do you call on ?
- do they call on ?
Negative - Interrogative
- do I not call on ?
- do you not call on ?
- does she/he/it not call on ?
- do we not call on ?
- do you not call on ?
- do they not call on ?
PRESENT CONTINUOUS
Affirmative
- I am calling on
- you are calling on
- she/he/it is calling on
- we are calling on
- you are calling on
- they are calling on
Negative
- I am not calling on
- you are not calling on
- she/he/it is not calling on
- we are not calling on
- you are not calling on
- they are not calling on
Interrogative
- am I calling on ?
- are you calling on ?
- is she/he/it calling on ?
- are we calling on ?
- are you calling on ?
- are they calling on ?
Negative - Interrogative
- am I not calling on ?
- are you not calling on ?
- is she/he/it not calling on ?
- are we not calling on ?
- are you not calling on ?
- are they not calling on ?
SIMPLE PAST
Affirmative
- I called on
- you called on
- she/he/it called on
- we called on
- you called on
- they called on
Negative
- I did not call on
- you did not call on
- she/he/it did not call on
- we did not call on
- you did not call on
- they did not call on
Interrogative
- did I call on ?
- did you call on ?
- did she/he/it call on ?
- did we call on ?
- did you call on ?
- did they call on ?
Negative - Interrogative
- did I not call on ?
- did you not call on ?
- did she/he/it not call on ?
- did we not call on ?
- did you not call on ?
- did they not call on ?
PRESENT PERFECT
Affirmative
- I have called on
- you have called on
- she/he/it has called on
- we have called on
- you have called on
- they have called on
Negative
- I have not called on
- you have not called on
- she/he/it has not called on
- we have not called on
- you have not called on
- they have not called on
Interrogative
- have I called on ?
- have you called on ?
- has she/he/it called on ?
- have we called on ?
- have you called on ?
- have they called on ?
Negative - Interrogative
- have I not called on ?
- have you not called on ?
- has she/he/it not called on ?
- have we not called on ?
- have you not called on ?
- have they not called on ?
PAST CONTINUOUS
Affirmative
- I was calling on
- you were calling on
- she/he/it was calling on
- we were calling on
- you were calling on
- they were calling on
Negative
- I was not calling on
- you were not calling on
- she/he/it was not calling on
- you were not calling on
- you were not calling on
- they were not calling on
Interrogative
- was I calling on ?
- were you calling on ?
- was she/he/it calling on ?
- were we calling on ?
- were you calling on ?
- were they calling on ?
Negative - Interrogative
- was I not calling on ?
- were you not calling on ?
- was she/he/it not calling on ?
- were we not calling on ?
- were you not calling on ?
- were they not calling on ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been calling on
- you have been calling on
- she/he/it has been calling on
- we have been calling on
- you have been calling on
- they have been calling on
Negative
- I have not been calling on
- you have not been calling on
- she/he/it has not been calling on
- we have not been calling on
- you have not been calling on
- they have not been calling on
Interrogative
- have I been calling on ?
- have you been calling on ?
- has she/he/it been calling on ?
- have we been calling on ?
- have you been calling on ?
- have they been calling on ?
Negative - Interrogative
- have I not been calling on ?
- have you not been calling on ?
- has she/he/it not been calling on ?
- have we not been calling on ?
- have you not been calling on ?
- have they not been calling on ?
PAST PERFECT
Affirmative
- I had called on
- you had called on
- she/he/it had called on
- we had called on
- you had called on
- they had called on
Negative
- I had not called on
- you had not called on
- she/he/it had not called on
- we had not called on
- you had not called on
- they had not called on
Interrogative
- had I called on ?
- had you called on ?
- had she/he/it called on ?
- had we called on ?
- had you called on ?
- had they called on ?
Negative - Interrogative
- had I not called on ?
- had you not called on ?
- had she/he/it not called on ?
- had we not called on ?
- had you not called on ?
- had they not called on ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been calling on
- you had been calling on
- she/he/it had been calling on
- we had been calling on
- you had been calling on
- they had been calling on
Negative
- I had not been calling on
- you had not been calling on
- she/he/it had not been calling on
- we had not been calling on
- you had not been calling on
- they had not been calling on
Interrogative
- had I been calling on ?
- had you been calling on ?
- had she/he/it been calling on ?
- had we been calling on ?
- had you been calling on ?
- had they been calling on ?
Negative - Interrogative
- had I not been calling on ?
- had you not been calling on ?
- had she/he/it not been calling on ?
- had we not been calling on ?
- had you not been calling on ?
- had they not been calling on ?