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