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