I heighten you heighten he heightens we heighten you heighten they heighten
Present continuous
I am heightening you are heightening he is heightening we are heightening you are heightening they are heightening
Preterite
I heightened you heightened he heightened we heightened you heightened they heightened
Preterite continuous
I was heightening you were heightening he was heightening we were heightening you were heightening they were heightening
Present perfect
I have heightened you have heightened he has heightened we have heightened you have heightened they have heightened
Present perfect continuous
I have been heightening you have been heightening he has been heightening we have been heightening you have been heightening they have been heightening
Pluperfect
I had heightened you had heightened he had heightened we had heightened you had heightened they had heightened
Pluperfect continuous
I had been heightening you had been heightening he had been heightening we had been heightening you had been heightening they had been heightening
Future
I will heighten you will heighten he will heighten we will heighten you will heighten they will heighten
Future continuous
I will be heightening you will be heightening he will be heightening we will be heightening you will be heightening they will be heightening
Future perfect
I will have heightened you will have heightened he will have heightened we will have heightened you will have heightened they will have heightened
Future perfect continuous
I will have been heightening you will have been heightening he will have been heightening we will have been heightening you will have been heightening they will have been heightening
Conditional
Present
I would heighten you would heighten he would heighten we would heighten you would heighten they would heighten
Present continuous
I would be heightening you would be heightening he would be heightening we would be heightening you would be heightening they would be heightening
Past
I would have heightened you would have heightened he would have heightened we would have heightened you would have heightened they would have heightened
Past continuous
I would have been heightening you would have been heightening he would have been heightening we would have been heightening you would have been heightening they would have been heightening