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