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