I do not certify you do not certify she does not certify we do not certify you do not certify they do not certify
Present continuous
I am not certifying you are not certifying she is not certifying we are not certifying you are not certifying they are not certifying
Preterite
I did not certify you did not certify she did not certify we did not certify you did not certify they did not certify
Preterite continuous
I was not certifying you were not certifying she was not certifying we were not certifying you were not certifying they were not certifying
Present perfect
I have not certified you have not certified she has not certified we have not certified you have not certified they have not certified
Present perfect continuous
I have not been certifying you have not been certifying she has not been certifying we have not been certifying you have not been certifying they have not been certifying
Pluperfect
I had not certified you had not certified she had not certified we had not certified you had not certified they had not certified
Pluperfect continuous
I had not been certifying you had not been certifying she had not been certifying we had not been certifying you had not been certifying they had not been certifying
Future
I will not certify you will not certify she will not certify we will not certify you will not certify they will not certify
Future continuous
I will not be certifying you will not be certifying she will not be certifying we will not be certifying you will not be certifying they will not be certifying
Future perfect
I will not have certified you will not have certified she will not have certified we will not have certified you will not have certified they will not have certified
Future perfect continuous
I will not have been certifying you will not have been certifying she will not have been certifying we will not have been certifying you will not have been certifying they will not have been certifying
Conditional
Present
I would not certify you would not certify she would not certify we would not certify you would not certify they would not certify
Present continuous
I would not be certifying you would not be certifying she would not be certifying we would not be certifying you would not be certifying they would not be certifying
Past
I would not have certified you would not have certified she would not have certified we would not have certified you would not have certified they would not have certified
Past continuous
I would not have been certifying you would not have been certifying she would not have been certifying we would not have been certifying you would not have been certifying they would not have been certifying