I do not undertain you do not undertain he does not undertain we do not undertain you do not undertain they do not undertain
Present continuous
I am not undertaining you are not undertaining he is not undertaining we are not undertaining you are not undertaining they are not undertaining
Preterite
I did not undertain you did not undertain he did not undertain we did not undertain you did not undertain they did not undertain
Preterite continuous
I was not undertaining you were not undertaining he was not undertaining we were not undertaining you were not undertaining they were not undertaining
Present perfect
I have not undertained you have not undertained he has not undertained we have not undertained you have not undertained they have not undertained
Present perfect continuous
I have not been undertaining you have not been undertaining he has not been undertaining we have not been undertaining you have not been undertaining they have not been undertaining
Pluperfect
I had not undertained you had not undertained he had not undertained we had not undertained you had not undertained they had not undertained
Pluperfect continuous
I had not been undertaining you had not been undertaining he had not been undertaining we had not been undertaining you had not been undertaining they had not been undertaining
Future
I will not undertain you will not undertain he will not undertain we will not undertain you will not undertain they will not undertain
Future continuous
I will not be undertaining you will not be undertaining he will not be undertaining we will not be undertaining you will not be undertaining they will not be undertaining
Future perfect
I will not have undertained you will not have undertained he will not have undertained we will not have undertained you will not have undertained they will not have undertained
Future perfect continuous
I will not have been undertaining you will not have been undertaining he will not have been undertaining we will not have been undertaining you will not have been undertaining they will not have been undertaining
Conditional
Present
I would not undertain you would not undertain he would not undertain we would not undertain you would not undertain they would not undertain
Present continuous
I would not be undertaining you would not be undertaining he would not be undertaining we would not be undertaining you would not be undertaining they would not be undertaining
Past
I would not have undertained you would not have undertained he would not have undertained we would not have undertained you would not have undertained they would not have undertained
Past continuous
I would not have been undertaining you would not have been undertaining he would not have been undertaining we would not have been undertaining you would not have been undertaining they would not have been undertaining
Imperative
Imperative
do not undertain Let's not undertain do not undertain