SIMPLE PRESENT
Affirmative
- I alter
- you alter
- she/he/it alters
- we alter
- you alter
- they alter
Negative
- I do not alter
- you do not alter
- she/he/it does not alter
- we do not alter
- you do not alter
- they do not alter
Interrogative
- do I alter ?
- do you alter ?
- does she/he/it alter ?
- do we alter ?
- do you alter ?
- do they alter ?
Negative - Interrogative
- do I not alter ?
- do you not alter ?
- does she/he/it not alter ?
- do we not alter ?
- do you not alter ?
- do they not alter ?
PRESENT CONTINUOUS
Affirmative
- I am altering
- you are altering
- she/he/it is altering
- we are altering
- you are altering
- they are altering
Negative
- I am not altering
- you are not altering
- she/he/it is not altering
- we are not altering
- you are not altering
- they are not altering
Interrogative
- am I altering ?
- are you altering ?
- is she/he/it altering ?
- are we altering ?
- are you altering ?
- are they altering ?
Negative - Interrogative
- am I not altering ?
- are you not altering ?
- is she/he/it not altering ?
- are we not altering ?
- are you not altering ?
- are they not altering ?
SIMPLE PAST
Affirmative
- I altered
- you altered
- she/he/it altered
- we altered
- you altered
- they altered
Negative
- I did not alter
- you did not alter
- she/he/it did not alter
- we did not alter
- you did not alter
- they did not alter
Interrogative
- did I alter ?
- did you alter ?
- did she/he/it alter ?
- did we alter ?
- did you alter ?
- did they alter ?
Negative - Interrogative
- did I not alter ?
- did you not alter ?
- did she/he/it not alter ?
- did we not alter ?
- did you not alter ?
- did they not alter ?
PRESENT PERFECT
Affirmative
- I have altered
- you have altered
- she/he/it has altered
- we have altered
- you have altered
- they have altered
Negative
- I have not altered
- you have not altered
- she/he/it has not altered
- we have not altered
- you have not altered
- they have not altered
Interrogative
- have I altered ?
- have you altered ?
- has she/he/it altered ?
- have we altered ?
- have you altered ?
- have they altered ?
Negative - Interrogative
- have I not altered ?
- have you not altered ?
- has she/he/it not altered ?
- have we not altered ?
- have you not altered ?
- have they not altered ?
PAST CONTINUOUS
Affirmative
- I was altering
- you were altering
- she/he/it was altering
- we were altering
- you were altering
- they were altering
Negative
- I was not altering
- you were not altering
- she/he/it was not altering
- you were not altering
- you were not altering
- they were not altering
Interrogative
- was I altering ?
- were you altering ?
- was she/he/it altering ?
- were we altering ?
- were you altering ?
- were they altering ?
Negative - Interrogative
- was I not altering ?
- were you not altering ?
- was she/he/it not altering ?
- were we not altering ?
- were you not altering ?
- were they not altering ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been altering
- you have been altering
- she/he/it has been altering
- we have been altering
- you have been altering
- they have been altering
Negative
- I have not been altering
- you have not been altering
- she/he/it has not been altering
- we have not been altering
- you have not been altering
- they have not been altering
Interrogative
- have I been altering ?
- have you been altering ?
- has she/he/it been altering ?
- have we been altering ?
- have you been altering ?
- have they been altering ?
Negative - Interrogative
- have I not been altering ?
- have you not been altering ?
- has she/he/it not been altering ?
- have we not been altering ?
- have you not been altering ?
- have they not been altering ?
PAST PERFECT
Affirmative
- I had altered
- you had altered
- she/he/it had altered
- we had altered
- you had altered
- they had altered
Negative
- I had not altered
- you had not altered
- she/he/it had not altered
- we had not altered
- you had not altered
- they had not altered
Interrogative
- had I altered ?
- had you altered ?
- had she/he/it altered ?
- had we altered ?
- had you altered ?
- had they altered ?
Negative - Interrogative
- had I not altered ?
- had you not altered ?
- had she/he/it not altered ?
- had we not altered ?
- had you not altered ?
- had they not altered ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been altering
- you had been altering
- she/he/it had been altering
- we had been altering
- you had been altering
- they had been altering
Negative
- I had not been altering
- you had not been altering
- she/he/it had not been altering
- we had not been altering
- you had not been altering
- they had not been altering
Interrogative
- had I been altering ?
- had you been altering ?
- had she/he/it been altering ?
- had we been altering ?
- had you been altering ?
- had they been altering ?
Negative - Interrogative
- had I not been altering ?
- had you not been altering ?
- had she/he/it not been altering ?
- had we not been altering ?
- had you not been altering ?
- had they not been altering ?