SIMPLE PRESENT
Affirmative
- I check
- you check
- she/he/it checks
- we check
- you check
- they check
Negative
- I do not check
- you do not check
- she/he/it does not check
- we do not check
- you do not check
- they do not check
Interrogative
- do I check ?
- do you check ?
- does she/he/it check ?
- do we check ?
- do you check ?
- do they check ?
Negative - Interrogative
- do I not check ?
- do you not check ?
- does she/he/it not check ?
- do we not check ?
- do you not check ?
- do they not check ?
PRESENT CONTINUOUS
Affirmative
- I am checking
- you are checking
- she/he/it is checking
- we are checking
- you are checking
- they are checking
Negative
- I am not checking
- you are not checking
- she/he/it is not checking
- we are not checking
- you are not checking
- they are not checking
Interrogative
- am I checking ?
- are you checking ?
- is she/he/it checking ?
- are we checking ?
- are you checking ?
- are they checking ?
Negative - Interrogative
- am I not checking ?
- are you not checking ?
- is she/he/it not checking ?
- are we not checking ?
- are you not checking ?
- are they not checking ?
SIMPLE PAST
Affirmative
- I checked
- you checked
- she/he/it checked
- we checked
- you checked
- they checked
Negative
- I did not check
- you did not check
- she/he/it did not check
- we did not check
- you did not check
- they did not check
Interrogative
- did I check ?
- did you check ?
- did she/he/it check ?
- did we check ?
- did you check ?
- did they check ?
Negative - Interrogative
- did I not check ?
- did you not check ?
- did she/he/it not check ?
- did we not check ?
- did you not check ?
- did they not check ?
PRESENT PERFECT
Affirmative
- I have checked
- you have checked
- she/he/it has checked
- we have checked
- you have checked
- they have checked
Negative
- I have not checked
- you have not checked
- she/he/it has not checked
- we have not checked
- you have not checked
- they have not checked
Interrogative
- have I checked ?
- have you checked ?
- has she/he/it checked ?
- have we checked ?
- have you checked ?
- have they checked ?
Negative - Interrogative
- have I not checked ?
- have you not checked ?
- has she/he/it not checked ?
- have we not checked ?
- have you not checked ?
- have they not checked ?
PAST CONTINUOUS
Affirmative
- I was checking
- you were checking
- she/he/it was checking
- we were checking
- you were checking
- they were checking
Negative
- I was not checking
- you were not checking
- she/he/it was not checking
- you were not checking
- you were not checking
- they were not checking
Interrogative
- was I checking ?
- were you checking ?
- was she/he/it checking ?
- were we checking ?
- were you checking ?
- were they checking ?
Negative - Interrogative
- was I not checking ?
- were you not checking ?
- was she/he/it not checking ?
- were we not checking ?
- were you not checking ?
- were they not checking ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been checking
- you have been checking
- she/he/it has been checking
- we have been checking
- you have been checking
- they have been checking
Negative
- I have not been checking
- you have not been checking
- she/he/it has not been checking
- we have not been checking
- you have not been checking
- they have not been checking
Interrogative
- have I been checking ?
- have you been checking ?
- has she/he/it been checking ?
- have we been checking ?
- have you been checking ?
- have they been checking ?
Negative - Interrogative
- have I not been checking ?
- have you not been checking ?
- has she/he/it not been checking ?
- have we not been checking ?
- have you not been checking ?
- have they not been checking ?
PAST PERFECT
Affirmative
- I had checked
- you had checked
- she/he/it had checked
- we had checked
- you had checked
- they had checked
Negative
- I had not checked
- you had not checked
- she/he/it had not checked
- we had not checked
- you had not checked
- they had not checked
Interrogative
- had I checked ?
- had you checked ?
- had she/he/it checked ?
- had we checked ?
- had you checked ?
- had they checked ?
Negative - Interrogative
- had I not checked ?
- had you not checked ?
- had she/he/it not checked ?
- had we not checked ?
- had you not checked ?
- had they not checked ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been checking
- you had been checking
- she/he/it had been checking
- we had been checking
- you had been checking
- they had been checking
Negative
- I had not been checking
- you had not been checking
- she/he/it had not been checking
- we had not been checking
- you had not been checking
- they had not been checking
Interrogative
- had I been checking ?
- had you been checking ?
- had she/he/it been checking ?
- had we been checking ?
- had you been checking ?
- had they been checking ?
Negative - Interrogative
- had I not been checking ?
- had you not been checking ?
- had she/he/it not been checking ?
- had we not been checking ?
- had you not been checking ?
- had they not been checking ?