I intervene you intervene she intervenes we intervene you intervene they intervene
Present continuous
I am intervening you are intervening she is intervening we are intervening you are intervening they are intervening
Preterite
I intervened you intervened she intervened we intervened you intervened they intervened
Preterite continuous
I was intervening you were intervening she was intervening we were intervening you were intervening they were intervening
Present perfect
I have intervened you have intervened she has intervened we have intervened you have intervened they have intervened
Present perfect continuous
I have been intervening you have been intervening she has been intervening we have been intervening you have been intervening they have been intervening
Pluperfect
I had intervened you had intervened she had intervened we had intervened you had intervened they had intervened
Pluperfect continuous
I had been intervening you had been intervening she had been intervening we had been intervening you had been intervening they had been intervening
Future
I will intervene you will intervene she will intervene we will intervene you will intervene they will intervene
Future continuous
I will be intervening you will be intervening she will be intervening we will be intervening you will be intervening they will be intervening
Future perfect
I will have intervened you will have intervened she will have intervened we will have intervened you will have intervened they will have intervened
Future perfect continuous
I will have been intervening you will have been intervening she will have been intervening we will have been intervening you will have been intervening they will have been intervening
Conditional
Present
I would intervene you would intervene she would intervene we would intervene you would intervene they would intervene
Present continuous
I would be intervening you would be intervening she would be intervening we would be intervening you would be intervening they would be intervening
Past
I would have intervened you would have intervened she would have intervened we would have intervened you would have intervened they would have intervened
Past continuous
I would have been intervening you would have been intervening she would have been intervening we would have been intervening you would have been intervening they would have been intervening