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