English verb conjugation
COULD GRAPPLE

Regular verb: grapple - grappled - grappled

Affirmation

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

Negation

Simple form	V-ing form
I couldn't grapple you couldn't grapple she couldn't grapple we couldn't grapple you couldn't grapple they couldn't grapple	I couldn't be grappling you couldn't be grappling she couldn't be grappling we couldn't be grappling you couldn't be grappling they couldn't be grappling
Perfect	V-ing perfect
I couldn't have grappled you couldn't have grappled she couldn't have grappled we couldn't have grappled you couldn't have grappled they couldn't have grappled	I couldn't have been grappling you couldn't have been grappling she couldn't have been grappling we couldn't have been grappling you couldn't have been grappling they couldn't have been grappling

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I grapple? couldn't you grapple? couldn't she grapple? couldn't we grapple? couldn't you grapple? couldn't they grapple?	couldn't I be grappling? couldn't you be grappling? couldn't she be grappling? couldn't we be grappling? couldn't you be grappling? couldn't they be grappling?
Perfect	V-ing perfect
couldn't I have grappled? couldn't you have grappled? couldn't she have grappled? couldn't we have grappled? couldn't you have grappled? couldn't they have grappled?	couldn't I have been grappling? couldn't you have been grappling? couldn't she have been grappling? couldn't we have been grappling? couldn't you have been grappling? couldn't they have been grappling?