English verb conjugation
COULD OUTTHUNDER

Regular verb: outthunder - outthundered - outthundered

Affirmation

Simple form	V-ing form
I could outthunder you could outthunder he could outthunder we could outthunder you could outthunder they could outthunder	I could be outthundering you could be outthundering he could be outthundering we could be outthundering you could be outthundering they could be outthundering
Perfect	V-ing perfect
I could have outthundered you could have outthundered he could have outthundered we could have outthundered you could have outthundered they could have outthundered	I could have been outthundering you could have been outthundering he could have been outthundering we could have been outthundering you could have been outthundering they could have been outthundering

Negation

Simple form	V-ing form
I could not outthunder you could not outthunder he could not outthunder we could not outthunder you could not outthunder they could not outthunder	I could not be outthundering you could not be outthundering he could not be outthundering we could not be outthundering you could not be outthundering they could not be outthundering
Perfect	V-ing perfect
I could not have outthundered you could not have outthundered he could not have outthundered we could not have outthundered you could not have outthundered they could not have outthundered	I could not have been outthundering you could not have been outthundering he could not have been outthundering we could not have been outthundering you could not have been outthundering they could not have been outthundering

Interrogative form

Simple form	V-ing form
could I outthunder? could you outthunder? could he outthunder? could we outthunder? could you outthunder? could they outthunder?	could I be outthundering? could you be outthundering? could he be outthundering? could we be outthundering? could you be outthundering? could they be outthundering?
Perfect	V-ing perfect
could I have outthundered? could you have outthundered? could he have outthundered? could we have outthundered? could you have outthundered? could they have outthundered?	could I have been outthundering? could you have been outthundering? could he have been outthundering? could we have been outthundering? could you have been outthundering? could they have been outthundering?

Interro-negative form

Simple form	V-ing form
could I not outthunder? could you not outthunder? could he not outthunder? could we not outthunder? could you not outthunder? could they not outthunder?	could I not be outthundering? could you not be outthundering? could he not be outthundering? could we not be outthundering? could you not be outthundering? could they not be outthundering?
Perfect	V-ing perfect
could I not have outthundered? could you not have outthundered? could he not have outthundered? could we not have outthundered? could you not have outthundered? could they not have outthundered?	could I not have been outthundering? could you not have been outthundering? could he not have been outthundering? could we not have been outthundering? could you not have been outthundering? could they not have been outthundering?