SIMPLE PRESENT
Affirmative
- I curve
- you curve
- she/he/it curves
- we curve
- you curve
- they curve
Negative
- I do not curve
- you do not curve
- she/he/it does not curve
- we do not curve
- you do not curve
- they do not curve
Interrogative
- do I curve ?
- do you curve ?
- does she/he/it curve ?
- do we curve ?
- do you curve ?
- do they curve ?
Negative - Interrogative
- do I not curve ?
- do you not curve ?
- does she/he/it not curve ?
- do we not curve ?
- do you not curve ?
- do they not curve ?
PRESENT CONTINUOUS
Affirmative
- I am curving
- you are curving
- she/he/it is curving
- we are curving
- you are curving
- they are curving
Negative
- I am not curving
- you are not curving
- she/he/it is not curving
- we are not curving
- you are not curving
- they are not curving
Interrogative
- am I curving ?
- are you curving ?
- is she/he/it curving ?
- are we curving ?
- are you curving ?
- are they curving ?
Negative - Interrogative
- am I not curving ?
- are you not curving ?
- is she/he/it not curving ?
- are we not curving ?
- are you not curving ?
- are they not curving ?
SIMPLE PAST
Affirmative
- I curved
- you curved
- she/he/it curved
- we curved
- you curved
- they curved
Negative
- I did not curve
- you did not curve
- she/he/it did not curve
- we did not curve
- you did not curve
- they did not curve
Interrogative
- did I curve ?
- did you curve ?
- did she/he/it curve ?
- did we curve ?
- did you curve ?
- did they curve ?
Negative - Interrogative
- did I not curve ?
- did you not curve ?
- did she/he/it not curve ?
- did we not curve ?
- did you not curve ?
- did they not curve ?
PRESENT PERFECT
Affirmative
- I have curved
- you have curved
- she/he/it has curved
- we have curved
- you have curved
- they have curved
Negative
- I have not curved
- you have not curved
- she/he/it has not curved
- we have not curved
- you have not curved
- they have not curved
Interrogative
- have I curved ?
- have you curved ?
- has she/he/it curved ?
- have we curved ?
- have you curved ?
- have they curved ?
Negative - Interrogative
- have I not curved ?
- have you not curved ?
- has she/he/it not curved ?
- have we not curved ?
- have you not curved ?
- have they not curved ?
PAST CONTINUOUS
Affirmative
- I was curving
- you were curving
- she/he/it was curving
- we were curving
- you were curving
- they were curving
Negative
- I was not curving
- you were not curving
- she/he/it was not curving
- you were not curving
- you were not curving
- they were not curving
Interrogative
- was I curving ?
- were you curving ?
- was she/he/it curving ?
- were we curving ?
- were you curving ?
- were they curving ?
Negative - Interrogative
- was I not curving ?
- were you not curving ?
- was she/he/it not curving ?
- were we not curving ?
- were you not curving ?
- were they not curving ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been curving
- you have been curving
- she/he/it has been curving
- we have been curving
- you have been curving
- they have been curving
Negative
- I have not been curving
- you have not been curving
- she/he/it has not been curving
- we have not been curving
- you have not been curving
- they have not been curving
Interrogative
- have I been curving ?
- have you been curving ?
- has she/he/it been curving ?
- have we been curving ?
- have you been curving ?
- have they been curving ?
Negative - Interrogative
- have I not been curving ?
- have you not been curving ?
- has she/he/it not been curving ?
- have we not been curving ?
- have you not been curving ?
- have they not been curving ?
PAST PERFECT
Affirmative
- I had curved
- you had curved
- she/he/it had curved
- we had curved
- you had curved
- they had curved
Negative
- I had not curved
- you had not curved
- she/he/it had not curved
- we had not curved
- you had not curved
- they had not curved
Interrogative
- had I curved ?
- had you curved ?
- had she/he/it curved ?
- had we curved ?
- had you curved ?
- had they curved ?
Negative - Interrogative
- had I not curved ?
- had you not curved ?
- had she/he/it not curved ?
- had we not curved ?
- had you not curved ?
- had they not curved ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been curving
- you had been curving
- she/he/it had been curving
- we had been curving
- you had been curving
- they had been curving
Negative
- I had not been curving
- you had not been curving
- she/he/it had not been curving
- we had not been curving
- you had not been curving
- they had not been curving
Interrogative
- had I been curving ?
- had you been curving ?
- had she/he/it been curving ?
- had we been curving ?
- had you been curving ?
- had they been curving ?
Negative - Interrogative
- had I not been curving ?
- had you not been curving ?
- had she/he/it not been curving ?
- had we not been curving ?
- had you not been curving ?
- had they not been curving ?