English verb conjugation
CAN QUINTUPLE

Regular verb: quintuple - quintupled - quintupled

Affirmation

Simple form	V-ing form
I can quintuple you can quintuple he can quintuple we can quintuple you can quintuple they can quintuple	I can be quintupling you can be quintupling he can be quintupling we can be quintupling you can be quintupling they can be quintupling
Perfect	V-ing perfect
I can have quintupled you can have quintupled he can have quintupled we can have quintupled you can have quintupled they can have quintupled	I can have been quintupling you can have been quintupling he can have been quintupling we can have been quintupling you can have been quintupling they can have been quintupling

Negation

Simple form	V-ing form
I can't quintuple you can't quintuple he can't quintuple we can't quintuple you can't quintuple they can't quintuple	I can't be quintupling you can't be quintupling he can't be quintupling we can't be quintupling you can't be quintupling they can't be quintupling
Perfect	V-ing perfect
I can't have quintupled you can't have quintupled he can't have quintupled we can't have quintupled you can't have quintupled they can't have quintupled	I can't have been quintupling you can't have been quintupling he can't have been quintupling we can't have been quintupling you can't have been quintupling they can't have been quintupling

Interrogative form

Simple form	V-ing form
can I quintuple? can you quintuple? can he quintuple? can we quintuple? can you quintuple? can they quintuple?	can I be quintupling? can you be quintupling? can he be quintupling? can we be quintupling? can you be quintupling? can they be quintupling?
Perfect	V-ing perfect
can I have quintupled? can you have quintupled? can he have quintupled? can we have quintupled? can you have quintupled? can they have quintupled?	can I have been quintupling? can you have been quintupling? can he have been quintupling? can we have been quintupling? can you have been quintupling? can they have been quintupling?

Interro-negative form

Simple form	V-ing form
can't I quintuple? can't you quintuple? can't he quintuple? can't we quintuple? can't you quintuple? can't they quintuple?	can't I be quintupling? can't you be quintupling? can't he be quintupling? can't we be quintupling? can't you be quintupling? can't they be quintupling?
Perfect	V-ing perfect
can't I have quintupled? can't you have quintupled? can't he have quintupled? can't we have quintupled? can't you have quintupled? can't they have quintupled?	can't I have been quintupling? can't you have been quintupling? can't he have been quintupling? can't we have been quintupling? can't you have been quintupling? can't they have been quintupling?