I weaken you weaken he weakens we weaken you weaken they weaken
Present continuous
I am weakening you are weakening he is weakening we are weakening you are weakening they are weakening
Preterite
I weakened you weakened he weakened we weakened you weakened they weakened
Preterite continuous
I was weakening you were weakening he was weakening we were weakening you were weakening they were weakening
Present perfect
I have weakened you have weakened he has weakened we have weakened you have weakened they have weakened
Present perfect continuous
I have been weakening you have been weakening he has been weakening we have been weakening you have been weakening they have been weakening
Pluperfect
I had weakened you had weakened he had weakened we had weakened you had weakened they had weakened
Pluperfect continuous
I had been weakening you had been weakening he had been weakening we had been weakening you had been weakening they had been weakening
Future
I will weaken you will weaken he will weaken we will weaken you will weaken they will weaken
Future continuous
I will be weakening you will be weakening he will be weakening we will be weakening you will be weakening they will be weakening
Future perfect
I will have weakened you will have weakened he will have weakened we will have weakened you will have weakened they will have weakened
Future perfect continuous
I will have been weakening you will have been weakening he will have been weakening we will have been weakening you will have been weakening they will have been weakening
Conditional
Present
I would weaken you would weaken he would weaken we would weaken you would weaken they would weaken
Present continuous
I would be weakening you would be weakening he would be weakening we would be weakening you would be weakening they would be weakening
Past
I would have weakened you would have weakened he would have weakened we would have weakened you would have weakened they would have weakened
Past continuous
I would have been weakening you would have been weakening he would have been weakening we would have been weakening you would have been weakening they would have been weakening