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