I must hook you must hook he must hook we must hook you must hook they must hook
V-ing form
I must be hooking you must be hooking he must be hooking we must be hooking you must be hooking they must be hooking
Perfect
I must have hooked you must have hooked he must have hooked we must have hooked you must have hooked they must have hooked
V-ing perfect
I must have been hooking you must have been hooking he must have been hooking we must have been hooking you must have been hooking they must have been hooking
Negation
Simple form
I must not hook you must not hook he must not hook we must not hook you must not hook they must not hook
V-ing form
I must not be hooking you must not be hooking he must not be hooking we must not be hooking you must not be hooking they must not be hooking
Perfect
I must not have hooked you must not have hooked he must not have hooked we must not have hooked you must not have hooked they must not have hooked
V-ing perfect
I must not have been hooking you must not have been hooking he must not have been hooking we must not have been hooking you must not have been hooking they must not have been hooking
Interrogative form
Simple form
must I hook? must you hook? must he hook? must we hook? must you hook? must they hook?
V-ing form
must I be hooking? must you be hooking? must he be hooking? must we be hooking? must you be hooking? must they be hooking?
Perfect
must I have hooked? must you have hooked? must he have hooked? must we have hooked? must you have hooked? must they have hooked?
V-ing perfect
must I have been hooking? must you have been hooking? must he have been hooking? must we have been hooking? must you have been hooking? must they have been hooking?
Interro-negative form
Simple form
must I not hook? must you not hook? must he not hook? must we not hook? must you not hook? must they not hook?
V-ing form
must I not be hooking? must you not be hooking? must he not be hooking? must we not be hooking? must you not be hooking? must they not be hooking?
Perfect
must I not have hooked? must you not have hooked? must he not have hooked? must we not have hooked? must you not have hooked? must they not have hooked?
V-ing perfect
must I not have been hooking? must you not have been hooking? must he not have been hooking? must we not have been hooking? must you not have been hooking? must they not have been hooking?