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