I could command you could command she could command we could command you could command they could command
V-ing form
I could be commanding you could be commanding she could be commanding we could be commanding you could be commanding they could be commanding
Perfect
I could have commanded you could have commanded she could have commanded we could have commanded you could have commanded they could have commanded
V-ing perfect
I could have been commanding you could have been commanding she could have been commanding we could have been commanding you could have been commanding they could have been commanding
Negation
Simple form
I could not command you could not command she could not command we could not command you could not command they could not command
V-ing form
I could not be commanding you could not be commanding she could not be commanding we could not be commanding you could not be commanding they could not be commanding
Perfect
I could not have commanded you could not have commanded she could not have commanded we could not have commanded you could not have commanded they could not have commanded
V-ing perfect
I could not have been commanding you could not have been commanding she could not have been commanding we could not have been commanding you could not have been commanding they could not have been commanding
Interrogative form
Simple form
could I command? could you command? could she command? could we command? could you command? could they command?
V-ing form
could I be commanding? could you be commanding? could she be commanding? could we be commanding? could you be commanding? could they be commanding?
Perfect
could I have commanded? could you have commanded? could she have commanded? could we have commanded? could you have commanded? could they have commanded?
V-ing perfect
could I have been commanding? could you have been commanding? could she have been commanding? could we have been commanding? could you have been commanding? could they have been commanding?
Interro-negative form
Simple form
could I not command? could you not command? could she not command? could we not command? could you not command? could they not command?
V-ing form
could I not be commanding? could you not be commanding? could she not be commanding? could we not be commanding? could you not be commanding? could they not be commanding?
Perfect
could I not have commanded? could you not have commanded? could she not have commanded? could we not have commanded? could you not have commanded? could they not have commanded?
V-ing perfect
could I not have been commanding? could you not have been commanding? could she not have been commanding? could we not have been commanding? could you not have been commanding? could they not have been commanding?