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