I could lease you could lease she could lease we could lease you could lease they could lease
V-ing form
I could be leasing you could be leasing she could be leasing we could be leasing you could be leasing they could be leasing
Perfect
I could have leased you could have leased she could have leased we could have leased you could have leased they could have leased
V-ing perfect
I could have been leasing you could have been leasing she could have been leasing we could have been leasing you could have been leasing they could have been leasing
Negation
Simple form
I could not lease you could not lease she could not lease we could not lease you could not lease they could not lease
V-ing form
I could not be leasing you could not be leasing she could not be leasing we could not be leasing you could not be leasing they could not be leasing
Perfect
I could not have leased you could not have leased she could not have leased we could not have leased you could not have leased they could not have leased
V-ing perfect
I could not have been leasing you could not have been leasing she could not have been leasing we could not have been leasing you could not have been leasing they could not have been leasing
Interrogative form
Simple form
could I lease? could you lease? could she lease? could we lease? could you lease? could they lease?
V-ing form
could I be leasing? could you be leasing? could she be leasing? could we be leasing? could you be leasing? could they be leasing?
Perfect
could I have leased? could you have leased? could she have leased? could we have leased? could you have leased? could they have leased?
V-ing perfect
could I have been leasing? could you have been leasing? could she have been leasing? could we have been leasing? could you have been leasing? could they have been leasing?
Interro-negative form
Simple form
could I not lease? could you not lease? could she not lease? could we not lease? could you not lease? could they not lease?
V-ing form
could I not be leasing? could you not be leasing? could she not be leasing? could we not be leasing? could you not be leasing? could they not be leasing?
Perfect
could I not have leased? could you not have leased? could she not have leased? could we not have leased? could you not have leased? could they not have leased?
V-ing perfect
could I not have been leasing? could you not have been leasing? could she not have been leasing? could we not have been leasing? could you not have been leasing? could they not have been leasing?