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