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