SIMPLE PRESENT
Affirmative
- I intervene
- you intervene
- she/he/it intervenes
- we intervene
- you intervene
- they intervene
Negative
- I do not intervene
- you do not intervene
- she/he/it does not intervene
- we do not intervene
- you do not intervene
- they do not intervene
Interrogative
- do I intervene ?
- do you intervene ?
- does she/he/it intervene ?
- do we intervene ?
- do you intervene ?
- do they intervene ?
Negative - Interrogative
- do I not intervene ?
- do you not intervene ?
- does she/he/it not intervene ?
- do we not intervene ?
- do you not intervene ?
- do they not intervene ?
PRESENT CONTINUOUS
Affirmative
- I am intervening
- you are intervening
- she/he/it is intervening
- we are intervening
- you are intervening
- they are intervening
Negative
- I am not intervening
- you are not intervening
- she/he/it is not intervening
- we are not intervening
- you are not intervening
- they are not intervening
Interrogative
- am I intervening ?
- are you intervening ?
- is she/he/it intervening ?
- are we intervening ?
- are you intervening ?
- are they intervening ?
Negative - Interrogative
- am I not intervening ?
- are you not intervening ?
- is she/he/it not intervening ?
- are we not intervening ?
- are you not intervening ?
- are they not intervening ?
SIMPLE PAST
Affirmative
- I intervened
- you intervened
- she/he/it intervened
- we intervened
- you intervened
- they intervened
Negative
- I did not intervene
- you did not intervene
- she/he/it did not intervene
- we did not intervene
- you did not intervene
- they did not intervene
Interrogative
- did I intervene ?
- did you intervene ?
- did she/he/it intervene ?
- did we intervene ?
- did you intervene ?
- did they intervene ?
Negative - Interrogative
- did I not intervene ?
- did you not intervene ?
- did she/he/it not intervene ?
- did we not intervene ?
- did you not intervene ?
- did they not intervene ?
PRESENT PERFECT
Affirmative
- I have intervened
- you have intervened
- she/he/it has intervened
- we have intervened
- you have intervened
- they have intervened
Negative
- I have not intervened
- you have not intervened
- she/he/it has not intervened
- we have not intervened
- you have not intervened
- they have not intervened
Interrogative
- have I intervened ?
- have you intervened ?
- has she/he/it intervened ?
- have we intervened ?
- have you intervened ?
- have they intervened ?
Negative - Interrogative
- have I not intervened ?
- have you not intervened ?
- has she/he/it not intervened ?
- have we not intervened ?
- have you not intervened ?
- have they not intervened ?
PAST CONTINUOUS
Affirmative
- I was intervening
- you were intervening
- she/he/it was intervening
- we were intervening
- you were intervening
- they were intervening
Negative
- I was not intervening
- you were not intervening
- she/he/it was not intervening
- you were not intervening
- you were not intervening
- they were not intervening
Interrogative
- was I intervening ?
- were you intervening ?
- was she/he/it intervening ?
- were we intervening ?
- were you intervening ?
- were they intervening ?
Negative - Interrogative
- was I not intervening ?
- were you not intervening ?
- was she/he/it not intervening ?
- were we not intervening ?
- were you not intervening ?
- were they not intervening ?
PRESENT PERFECT CONTINUOUS
Affirmative
- I have been intervening
- you have been intervening
- she/he/it has been intervening
- we have been intervening
- you have been intervening
- they have been intervening
Negative
- I have not been intervening
- you have not been intervening
- she/he/it has not been intervening
- we have not been intervening
- you have not been intervening
- they have not been intervening
Interrogative
- have I been intervening ?
- have you been intervening ?
- has she/he/it been intervening ?
- have we been intervening ?
- have you been intervening ?
- have they been intervening ?
Negative - Interrogative
- have I not been intervening ?
- have you not been intervening ?
- has she/he/it not been intervening ?
- have we not been intervening ?
- have you not been intervening ?
- have they not been intervening ?
PAST PERFECT
Affirmative
- I had intervened
- you had intervened
- she/he/it had intervened
- we had intervened
- you had intervened
- they had intervened
Negative
- I had not intervened
- you had not intervened
- she/he/it had not intervened
- we had not intervened
- you had not intervened
- they had not intervened
Interrogative
- had I intervened ?
- had you intervened ?
- had she/he/it intervened ?
- had we intervened ?
- had you intervened ?
- had they intervened ?
Negative - Interrogative
- had I not intervened ?
- had you not intervened ?
- had she/he/it not intervened ?
- had we not intervened ?
- had you not intervened ?
- had they not intervened ?
PAST PERFECT CONTINUOUS
Affirmative
- I had been intervening
- you had been intervening
- she/he/it had been intervening
- we had been intervening
- you had been intervening
- they had been intervening
Negative
- I had not been intervening
- you had not been intervening
- she/he/it had not been intervening
- we had not been intervening
- you had not been intervening
- they had not been intervening
Interrogative
- had I been intervening ?
- had you been intervening ?
- had she/he/it been intervening ?
- had we been intervening ?
- had you been intervening ?
- had they been intervening ?
Negative - Interrogative
- had I not been intervening ?
- had you not been intervening ?
- had she/he/it not been intervening ?
- had we not been intervening ?
- had you not been intervening ?
- had they not been intervening ?