I could transact you could transact she could transact we could transact you could transact they could transact
V-ing form
I could be transacting you could be transacting she could be transacting we could be transacting you could be transacting they could be transacting
Perfect
I could have transacted you could have transacted she could have transacted we could have transacted you could have transacted they could have transacted
V-ing perfect
I could have been transacting you could have been transacting she could have been transacting we could have been transacting you could have been transacting they could have been transacting
Negation
Simple form
I could not transact you could not transact she could not transact we could not transact you could not transact they could not transact
V-ing form
I could not be transacting you could not be transacting she could not be transacting we could not be transacting you could not be transacting they could not be transacting
Perfect
I could not have transacted you could not have transacted she could not have transacted we could not have transacted you could not have transacted they could not have transacted
V-ing perfect
I could not have been transacting you could not have been transacting she could not have been transacting we could not have been transacting you could not have been transacting they could not have been transacting
Interrogative form
Simple form
could I transact? could you transact? could she transact? could we transact? could you transact? could they transact?
V-ing form
could I be transacting? could you be transacting? could she be transacting? could we be transacting? could you be transacting? could they be transacting?
Perfect
could I have transacted? could you have transacted? could she have transacted? could we have transacted? could you have transacted? could they have transacted?
V-ing perfect
could I have been transacting? could you have been transacting? could she have been transacting? could we have been transacting? could you have been transacting? could they have been transacting?
Interro-negative form
Simple form
could I not transact? could you not transact? could she not transact? could we not transact? could you not transact? could they not transact?
V-ing form
could I not be transacting? could you not be transacting? could she not be transacting? could we not be transacting? could you not be transacting? could they not be transacting?
Perfect
could I not have transacted? could you not have transacted? could she not have transacted? could we not have transacted? could you not have transacted? could they not have transacted?
V-ing perfect
could I not have been transacting? could you not have been transacting? could she not have been transacting? could we not have been transacting? could you not have been transacting? could they not have been transacting?