I could unwrap you could unwrap he could unwrap we could unwrap you could unwrap they could unwrap
V-ing form
I could be unwrapping you could be unwrapping he could be unwrapping we could be unwrapping you could be unwrapping they could be unwrapping
Perfect
I could have unwrapped you could have unwrapped he could have unwrapped we could have unwrapped you could have unwrapped they could have unwrapped
V-ing perfect
I could have been unwrapping you could have been unwrapping he could have been unwrapping we could have been unwrapping you could have been unwrapping they could have been unwrapping
Negation
Simple form
I couldn't unwrap you couldn't unwrap he couldn't unwrap we couldn't unwrap you couldn't unwrap they couldn't unwrap
V-ing form
I couldn't be unwrapping you couldn't be unwrapping he couldn't be unwrapping we couldn't be unwrapping you couldn't be unwrapping they couldn't be unwrapping
Perfect
I couldn't have unwrapped you couldn't have unwrapped he couldn't have unwrapped we couldn't have unwrapped you couldn't have unwrapped they couldn't have unwrapped
V-ing perfect
I couldn't have been unwrapping you couldn't have been unwrapping he couldn't have been unwrapping we couldn't have been unwrapping you couldn't have been unwrapping they couldn't have been unwrapping
Interrogative form
Simple form
could I unwrap? could you unwrap? could he unwrap? could we unwrap? could you unwrap? could they unwrap?
V-ing form
could I be unwrapping? could you be unwrapping? could he be unwrapping? could we be unwrapping? could you be unwrapping? could they be unwrapping?
Perfect
could I have unwrapped? could you have unwrapped? could he have unwrapped? could we have unwrapped? could you have unwrapped? could they have unwrapped?
V-ing perfect
could I have been unwrapping? could you have been unwrapping? could he have been unwrapping? could we have been unwrapping? could you have been unwrapping? could they have been unwrapping?
Interro-negative form
Simple form
couldn't I unwrap? couldn't you unwrap? couldn't he unwrap? couldn't we unwrap? couldn't you unwrap? couldn't they unwrap?
V-ing form
couldn't I be unwrapping? couldn't you be unwrapping? couldn't he be unwrapping? couldn't we be unwrapping? couldn't you be unwrapping? couldn't they be unwrapping?
Perfect
couldn't I have unwrapped? couldn't you have unwrapped? couldn't he have unwrapped? couldn't we have unwrapped? couldn't you have unwrapped? couldn't they have unwrapped?
V-ing perfect
couldn't I have been unwrapping? couldn't you have been unwrapping? couldn't he have been unwrapping? couldn't we have been unwrapping? couldn't you have been unwrapping? couldn't they have been unwrapping?