English verb conjugation
COULD TRIPLE

Regular verb: triple - tripled - tripled

Affirmation

Simple form	V-ing form
I could triple you could triple he could triple we could triple you could triple they could triple	I could be tripling you could be tripling he could be tripling we could be tripling you could be tripling they could be tripling
Perfect	V-ing perfect
I could have tripled you could have tripled he could have tripled we could have tripled you could have tripled they could have tripled	I could have been tripling you could have been tripling he could have been tripling we could have been tripling you could have been tripling they could have been tripling

Negation

Simple form	V-ing form
I could not triple you could not triple he could not triple we could not triple you could not triple they could not triple	I could not be tripling you could not be tripling he could not be tripling we could not be tripling you could not be tripling they could not be tripling
Perfect	V-ing perfect
I could not have tripled you could not have tripled he could not have tripled we could not have tripled you could not have tripled they could not have tripled	I could not have been tripling you could not have been tripling he could not have been tripling we could not have been tripling you could not have been tripling they could not have been tripling

Interrogative form

Simple form	V-ing form
could I triple? could you triple? could he triple? could we triple? could you triple? could they triple?	could I be tripling? could you be tripling? could he be tripling? could we be tripling? could you be tripling? could they be tripling?
Perfect	V-ing perfect
could I have tripled? could you have tripled? could he have tripled? could we have tripled? could you have tripled? could they have tripled?	could I have been tripling? could you have been tripling? could he have been tripling? could we have been tripling? could you have been tripling? could they have been tripling?

Interro-negative form

Simple form	V-ing form
could I not triple? could you not triple? could he not triple? could we not triple? could you not triple? could they not triple?	could I not be tripling? could you not be tripling? could he not be tripling? could we not be tripling? could you not be tripling? could they not be tripling?
Perfect	V-ing perfect
could I not have tripled? could you not have tripled? could he not have tripled? could we not have tripled? could you not have tripled? could they not have tripled?	could I not have been tripling? could you not have been tripling? could he not have been tripling? could we not have been tripling? could you not have been tripling? could they not have been tripling?