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