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