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