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