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 couldn't outthunder you couldn't outthunder he couldn't outthunder we couldn't outthunder you couldn't outthunder they couldn't outthunder	I couldn't be outthundering you couldn't be outthundering he couldn't be outthundering we couldn't be outthundering you couldn't be outthundering they couldn't be outthundering
Perfect	V-ing perfect
I couldn't have outthundered you couldn't have outthundered he couldn't have outthundered we couldn't have outthundered you couldn't have outthundered they couldn't have outthundered	I couldn't have been outthundering you couldn't have been outthundering he couldn't have been outthundering we couldn't have been outthundering you couldn't have been outthundering they couldn't 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
couldn't I outthunder? couldn't you outthunder? couldn't he outthunder? couldn't we outthunder? couldn't you outthunder? couldn't they outthunder?	couldn't I be outthundering? couldn't you be outthundering? couldn't he be outthundering? couldn't we be outthundering? couldn't you be outthundering? couldn't they be outthundering?
Perfect	V-ing perfect
couldn't I have outthundered? couldn't you have outthundered? couldn't he have outthundered? couldn't we have outthundered? couldn't you have outthundered? couldn't they have outthundered?	couldn't I have been outthundering? couldn't you have been outthundering? couldn't he have been outthundering? couldn't we have been outthundering? couldn't you have been outthundering? couldn't they have been outthundering?