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