English verb conjugation
COULD WHELP

Regular verb: whelp - whelped - whelped

Affirmation

Simple form	V-ing form
I could whelp you could whelp she could whelp we could whelp you could whelp they could whelp	I could be whelping you could be whelping she could be whelping we could be whelping you could be whelping they could be whelping
Perfect	V-ing perfect
I could have whelped you could have whelped she could have whelped we could have whelped you could have whelped they could have whelped	I could have been whelping you could have been whelping she could have been whelping we could have been whelping you could have been whelping they could have been whelping

Negation

Simple form	V-ing form
I could not whelp you could not whelp she could not whelp we could not whelp you could not whelp they could not whelp	I could not be whelping you could not be whelping she could not be whelping we could not be whelping you could not be whelping they could not be whelping
Perfect	V-ing perfect
I could not have whelped you could not have whelped she could not have whelped we could not have whelped you could not have whelped they could not have whelped	I could not have been whelping you could not have been whelping she could not have been whelping we could not have been whelping you could not have been whelping they could not have been whelping

Interrogative form

Simple form	V-ing form
could I whelp? could you whelp? could she whelp? could we whelp? could you whelp? could they whelp?	could I be whelping? could you be whelping? could she be whelping? could we be whelping? could you be whelping? could they be whelping?
Perfect	V-ing perfect
could I have whelped? could you have whelped? could she have whelped? could we have whelped? could you have whelped? could they have whelped?	could I have been whelping? could you have been whelping? could she have been whelping? could we have been whelping? could you have been whelping? could they have been whelping?

Interro-negative form

Simple form	V-ing form
could I not whelp? could you not whelp? could she not whelp? could we not whelp? could you not whelp? could they not whelp?	could I not be whelping? could you not be whelping? could she not be whelping? could we not be whelping? could you not be whelping? could they not be whelping?
Perfect	V-ing perfect
could I not have whelped? could you not have whelped? could she not have whelped? could we not have whelped? could you not have whelped? could they not have whelped?	could I not have been whelping? could you not have been whelping? could she not have been whelping? could we not have been whelping? could you not have been whelping? could they not have been whelping?