English verb conjugation
CAN GRAPPLE

Regular verb: grapple - grappled - grappled

Affirmation

Simple form	V-ing form
I can grapple you can grapple he can grapple we can grapple you can grapple they can grapple	I can be grappling you can be grappling he can be grappling we can be grappling you can be grappling they can be grappling
Perfect	V-ing perfect
I can have grappled you can have grappled he can have grappled we can have grappled you can have grappled they can have grappled	I can have been grappling you can have been grappling he can have been grappling we can have been grappling you can have been grappling they can have been grappling

Negation

Simple form	V-ing form
I cannot grapple you cannot grapple he cannot grapple we cannot grapple you cannot grapple they cannot grapple	I cannot be grappling you cannot be grappling he cannot be grappling we cannot be grappling you cannot be grappling they cannot be grappling
Perfect	V-ing perfect
I cannot have grappled you cannot have grappled he cannot have grappled we cannot have grappled you cannot have grappled they cannot have grappled	I cannot have been grappling you cannot have been grappling he cannot have been grappling we cannot have been grappling you cannot have been grappling they cannot have been grappling

Interrogative form

Simple form	V-ing form
can I grapple? can you grapple? can he grapple? can we grapple? can you grapple? can they grapple?	can I be grappling? can you be grappling? can he be grappling? can we be grappling? can you be grappling? can they be grappling?
Perfect	V-ing perfect
can I have grappled? can you have grappled? can he have grappled? can we have grappled? can you have grappled? can they have grappled?	can I have been grappling? can you have been grappling? can he have been grappling? can we have been grappling? can you have been grappling? can they have been grappling?

Interro-negative form

Simple form	V-ing form
can I not grapple? can you not grapple? can he not grapple? can we not grapple? can you not grapple? can they not grapple?	can I not be grappling? can you not be grappling? can he not be grappling? can we not be grappling? can you not be grappling? can they not be grappling?
Perfect	V-ing perfect
can I not have grappled? can you not have grappled? can he not have grappled? can we not have grappled? can you not have grappled? can they not have grappled?	can I not have been grappling? can you not have been grappling? can he not have been grappling? can we not have been grappling? can you not have been grappling? can they not have been grappling?