SIMPLE PRESENT
Affirmative
- I ventilate
- you ventilate
- she/he/it ventilates
- we ventilate
- you ventilate
- they ventilate
Negative
- I do not ventilate
- you do not ventilate
- she/he/it does not ventilate
- we do not ventilate
- you do not ventilate
- they do not ventilate
Interrogative
- do I ventilate ?
- do you ventilate ?
- does she/he/it ventilate ?
- do we ventilate ?
- do you ventilate ?
- do they ventilate ?
Negative - Interrogative
- do I not ventilate ?
- do you not ventilate ?
- does she/he/it not ventilate ?
- do we not ventilate ?
- do you not ventilate ?
- do they not ventilate ?
PRESENT CONTINUOUS
Affirmative
- I am ventilating
- you are ventilating
- she/he/it is ventilating
- we are ventilating
- you are ventilating
- they are ventilating
Negative
- I am not ventilating
- you are not ventilating
- she/he/it is not ventilating
- we are not ventilating
- you are not ventilating
- they are not ventilating
Interrogative
- am I ventilating ?
- are you ventilating ?
- is she/he/it ventilating ?
- are we ventilating ?
- are you ventilating ?
- are they ventilating ?
Negative - Interrogative
- am I not ventilating ?
- are you not ventilating ?
- is she/he/it not ventilating ?
- are we not ventilating ?
- are you not ventilating ?
- are they not ventilating ?
SIMPLE PAST
Affirmative
- I ventilated
- you ventilated
- she/he/it ventilated
- we ventilated
- you ventilated
- they ventilated
Negative
- I did not ventilate
- you did not ventilate
- she/he/it did not ventilate
- we did not ventilate
- you did not ventilate
- they did not ventilate
Interrogative
- did I ventilate ?
- did you ventilate ?
- did she/he/it ventilate ?
- did we ventilate ?
- did you ventilate ?
- did they ventilate ?
Negative - Interrogative
- did I not ventilate ?
- did you not ventilate ?
- did she/he/it not ventilate ?
- did we not ventilate ?
- did you not ventilate ?
- did they not ventilate ?
PRESENT PERFECT
Affirmative
- I have ventilated
- you have ventilated
- she/he/it has ventilated
- we have ventilated
- you have ventilated
- they have ventilated
Negative
- I have not ventilated
- you have not ventilated
- she/he/it has not ventilated
- we have not ventilated
- you have not ventilated
- they have not ventilated
Interrogative
- have I ventilated ?
- have you ventilated ?
- has she/he/it ventilated ?
- have we ventilated ?
- have you ventilated ?
- have they ventilated ?
Negative - Interrogative
- have I not ventilated ?
- have you not ventilated ?
- has she/he/it not ventilated ?
- have we not ventilated ?
- have you not ventilated ?
- have they not ventilated ?
PAST CONTINUOUS
Affirmative
- I was ventilating
- you were ventilating
- she/he/it was ventilating
- we were ventilating
- you were ventilating
- they were ventilating
Negative
- I was not ventilating
- you were not ventilating
- she/he/it was not ventilating
- you were not ventilating
- you were not ventilating
- they were not ventilating
Interrogative
- was I ventilating ?
- were you ventilating ?
- was she/he/it ventilating ?
- were we ventilating ?
- were you ventilating ?
- were they ventilating ?
Negative - Interrogative
- was I not ventilating ?
- were you not ventilating ?
- was she/he/it not ventilating ?
- were we not ventilating ?
- were you not ventilating ?
- were they not ventilating ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been ventilating
- you have been ventilating
- she/he/it has been ventilating
- we have been ventilating
- you have been ventilating
- they have been ventilating
Negative
- I have not been ventilating
- you have not been ventilating
- she/he/it has not been ventilating
- we have not been ventilating
- you have not been ventilating
- they have not been ventilating
Interrogative
- have I been ventilating ?
- have you been ventilating ?
- has she/he/it been ventilating ?
- have we been ventilating ?
- have you been ventilating ?
- have they been ventilating ?
Negative - Interrogative
- have I not been ventilating ?
- have you not been ventilating ?
- has she/he/it not been ventilating ?
- have we not been ventilating ?
- have you not been ventilating ?
- have they not been ventilating ?
PAST PERFECT
Affirmative
- I had ventilated
- you had ventilated
- she/he/it had ventilated
- we had ventilated
- you had ventilated
- they had ventilated
Negative
- I had not ventilated
- you had not ventilated
- she/he/it had not ventilated
- we had not ventilated
- you had not ventilated
- they had not ventilated
Interrogative
- had I ventilated ?
- had you ventilated ?
- had she/he/it ventilated ?
- had we ventilated ?
- had you ventilated ?
- had they ventilated ?
Negative - Interrogative
- had I not ventilated ?
- had you not ventilated ?
- had she/he/it not ventilated ?
- had we not ventilated ?
- had you not ventilated ?
- had they not ventilated ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been ventilating
- you had been ventilating
- she/he/it had been ventilating
- we had been ventilating
- you had been ventilating
- they had been ventilating
Negative
- I had not been ventilating
- you had not been ventilating
- she/he/it had not been ventilating
- we had not been ventilating
- you had not been ventilating
- they had not been ventilating
Interrogative
- had I been ventilating ?
- had you been ventilating ?
- had she/he/it been ventilating ?
- had we been ventilating ?
- had you been ventilating ?
- had they been ventilating ?
Negative - Interrogative
- had I not been ventilating ?
- had you not been ventilating ?
- had she/he/it not been ventilating ?
- had we not been ventilating ?
- had you not been ventilating ?
- had they not been ventilating ?