I could lollygag you could lollygag she could lollygag we could lollygag you could lollygag they could lollygag
V-ing form
I could be lollygaging you could be lollygaging she could be lollygaging we could be lollygaging you could be lollygaging they could be lollygaging
Perfect
I could have lollygaged you could have lollygaged she 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 she 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 she 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 she 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 she 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 she 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 she lollygag? could we lollygag? could you lollygag? could they lollygag?
V-ing form
could I be lollygaging? could you be lollygaging? could she be lollygaging? could we be lollygaging? could you be lollygaging? could they be lollygaging?
Perfect
could I have lollygaged? could you have lollygaged? could she 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 she 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 she 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 she 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 she 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 she have been lollygaging? couldn't we have been lollygaging? couldn't you have been lollygaging? couldn't they have been lollygaging?