I must copyread you must copyread she must copyread we must copyread you must copyread they must copyread
V-ing form
I must be copyreading you must be copyreading she must be copyreading we must be copyreading you must be copyreading they must be copyreading
Perfect
I must have copyread you must have copyread she must have copyread we must have copyread you must have copyread they must have copyread
V-ing perfect
I must have been copyreading you must have been copyreading she must have been copyreading we must have been copyreading you must have been copyreading they must have been copyreading
Negation
Simple form
I must not copyread you must not copyread she must not copyread we must not copyread you must not copyread they must not copyread
V-ing form
I must not be copyreading you must not be copyreading she must not be copyreading we must not be copyreading you must not be copyreading they must not be copyreading
Perfect
I must not have copyread you must not have copyread she must not have copyread we must not have copyread you must not have copyread they must not have copyread
V-ing perfect
I must not have been copyreading you must not have been copyreading she must not have been copyreading we must not have been copyreading you must not have been copyreading they must not have been copyreading
Interrogative form
Simple form
must I copyread? must you copyread? must she copyread? must we copyread? must you copyread? must they copyread?
V-ing form
must I be copyreading? must you be copyreading? must she be copyreading? must we be copyreading? must you be copyreading? must they be copyreading?
Perfect
must I have copyread? must you have copyread? must she have copyread? must we have copyread? must you have copyread? must they have copyread?
V-ing perfect
must I have been copyreading? must you have been copyreading? must she have been copyreading? must we have been copyreading? must you have been copyreading? must they have been copyreading?
Interro-negative form
Simple form
must I not copyread? must you not copyread? must she not copyread? must we not copyread? must you not copyread? must they not copyread?
V-ing form
must I not be copyreading? must you not be copyreading? must she not be copyreading? must we not be copyreading? must you not be copyreading? must they not be copyreading?
Perfect
must I not have copyread? must you not have copyread? must she not have copyread? must we not have copyread? must you not have copyread? must they not have copyread?
V-ing perfect
must I not have been copyreading? must you not have been copyreading? must she not have been copyreading? must we not have been copyreading? must you not have been copyreading? must they not have been copyreading?