Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could pull up you could pull up she could pull up we could pull up you could pull up they could pull up
V-ing form
I could be pull uping you could be pull uping she could be pull uping we could be pull uping you could be pull uping they could be pull uping
Perfect
I could have pull uped you could have pull uped she could have pull uped we could have pull uped you could have pull uped they could have pull uped
V-ing perfect
I could have been pull uping you could have been pull uping she could have been pull uping we could have been pull uping you could have been pull uping they could have been pull uping
Negation
Simple form
I couldn't pull up you couldn't pull up she couldn't pull up we couldn't pull up you couldn't pull up they couldn't pull up
V-ing form
I couldn't be pull uping you couldn't be pull uping she couldn't be pull uping we couldn't be pull uping you couldn't be pull uping they couldn't be pull uping
Perfect
I couldn't have pull uped you couldn't have pull uped she couldn't have pull uped we couldn't have pull uped you couldn't have pull uped they couldn't have pull uped
V-ing perfect
I couldn't have been pull uping you couldn't have been pull uping she couldn't have been pull uping we couldn't have been pull uping you couldn't have been pull uping they couldn't have been pull uping
Interrogative form
Simple form
could I pull up? could you pull up? could she pull up? could we pull up? could you pull up? could they pull up?
V-ing form
could I be pull uping? could you be pull uping? could she be pull uping? could we be pull uping? could you be pull uping? could they be pull uping?
Perfect
could I have pull uped? could you have pull uped? could she have pull uped? could we have pull uped? could you have pull uped? could they have pull uped?
V-ing perfect
could I have been pull uping? could you have been pull uping? could she have been pull uping? could we have been pull uping? could you have been pull uping? could they have been pull uping?
Interro-negative form
Simple form
couldn't I pull up? couldn't you pull up? couldn't she pull up? couldn't we pull up? couldn't you pull up? couldn't they pull up?
V-ing form
couldn't I be pull uping? couldn't you be pull uping? couldn't she be pull uping? couldn't we be pull uping? couldn't you be pull uping? couldn't they be pull uping?
Perfect
couldn't I have pull uped? couldn't you have pull uped? couldn't she have pull uped? couldn't we have pull uped? couldn't you have pull uped? couldn't they have pull uped?
V-ing perfect
couldn't I have been pull uping? couldn't you have been pull uping? couldn't she have been pull uping? couldn't we have been pull uping? couldn't you have been pull uping? couldn't they have been pull uping?