I could expose you could expose she could expose we could expose you could expose they could expose
V-ing form
I could be exposing you could be exposing she could be exposing we could be exposing you could be exposing they could be exposing
Perfect
I could have exposed you could have exposed she could have exposed we could have exposed you could have exposed they could have exposed
V-ing perfect
I could have been exposing you could have been exposing she could have been exposing we could have been exposing you could have been exposing they could have been exposing
Negation
Simple form
I couldn't expose you couldn't expose she couldn't expose we couldn't expose you couldn't expose they couldn't expose
V-ing form
I couldn't be exposing you couldn't be exposing she couldn't be exposing we couldn't be exposing you couldn't be exposing they couldn't be exposing
Perfect
I couldn't have exposed you couldn't have exposed she couldn't have exposed we couldn't have exposed you couldn't have exposed they couldn't have exposed
V-ing perfect
I couldn't have been exposing you couldn't have been exposing she couldn't have been exposing we couldn't have been exposing you couldn't have been exposing they couldn't have been exposing
Interrogative form
Simple form
could I expose? could you expose? could she expose? could we expose? could you expose? could they expose?
V-ing form
could I be exposing? could you be exposing? could she be exposing? could we be exposing? could you be exposing? could they be exposing?
Perfect
could I have exposed? could you have exposed? could she have exposed? could we have exposed? could you have exposed? could they have exposed?
V-ing perfect
could I have been exposing? could you have been exposing? could she have been exposing? could we have been exposing? could you have been exposing? could they have been exposing?
Interro-negative form
Simple form
couldn't I expose? couldn't you expose? couldn't she expose? couldn't we expose? couldn't you expose? couldn't they expose?
V-ing form
couldn't I be exposing? couldn't you be exposing? couldn't she be exposing? couldn't we be exposing? couldn't you be exposing? couldn't they be exposing?
Perfect
couldn't I have exposed? couldn't you have exposed? couldn't she have exposed? couldn't we have exposed? couldn't you have exposed? couldn't they have exposed?
V-ing perfect
couldn't I have been exposing? couldn't you have been exposing? couldn't she have been exposing? couldn't we have been exposing? couldn't you have been exposing? couldn't they have been exposing?