English verb conjugation
COULD FIBRILLATE

Regular verb: fibrillate - fibrillated - fibrillated

Affirmation

Simple form	V-ing form
I could fibrillate you could fibrillate he could fibrillate we could fibrillate you could fibrillate they could fibrillate	I could be fibrillating you could be fibrillating he could be fibrillating we could be fibrillating you could be fibrillating they could be fibrillating
Perfect	V-ing perfect
I could have fibrillated you could have fibrillated he could have fibrillated we could have fibrillated you could have fibrillated they could have fibrillated	I could have been fibrillating you could have been fibrillating he could have been fibrillating we could have been fibrillating you could have been fibrillating they could have been fibrillating

Negation

Simple form	V-ing form
I could not fibrillate you could not fibrillate he could not fibrillate we could not fibrillate you could not fibrillate they could not fibrillate	I could not be fibrillating you could not be fibrillating he could not be fibrillating we could not be fibrillating you could not be fibrillating they could not be fibrillating
Perfect	V-ing perfect
I could not have fibrillated you could not have fibrillated he could not have fibrillated we could not have fibrillated you could not have fibrillated they could not have fibrillated	I could not have been fibrillating you could not have been fibrillating he could not have been fibrillating we could not have been fibrillating you could not have been fibrillating they could not have been fibrillating

Interrogative form

Simple form	V-ing form
could I fibrillate? could you fibrillate? could he fibrillate? could we fibrillate? could you fibrillate? could they fibrillate?	could I be fibrillating? could you be fibrillating? could he be fibrillating? could we be fibrillating? could you be fibrillating? could they be fibrillating?
Perfect	V-ing perfect
could I have fibrillated? could you have fibrillated? could he have fibrillated? could we have fibrillated? could you have fibrillated? could they have fibrillated?	could I have been fibrillating? could you have been fibrillating? could he have been fibrillating? could we have been fibrillating? could you have been fibrillating? could they have been fibrillating?

Interro-negative form

Simple form	V-ing form
could I not fibrillate? could you not fibrillate? could he not fibrillate? could we not fibrillate? could you not fibrillate? could they not fibrillate?	could I not be fibrillating? could you not be fibrillating? could he not be fibrillating? could we not be fibrillating? could you not be fibrillating? could they not be fibrillating?
Perfect	V-ing perfect
could I not have fibrillated? could you not have fibrillated? could he not have fibrillated? could we not have fibrillated? could you not have fibrillated? could they not have fibrillated?	could I not have been fibrillating? could you not have been fibrillating? could he not have been fibrillating? could we not have been fibrillating? could you not have been fibrillating? could they not have been fibrillating?