must hook
Regular verb: hook - hooked- hooked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must hook
you must hook
she must hook
we must hook
you must hook
they must hook 	I must be hooking
you must be hooking
she must be hooking
we must be hooking
you must be hooking
they must be hooking	I must have hooked
you must have hooked
she must have hooked
we must have hooked
you must have hooked
they must have hooked	I must have been hooking
you must have been hooking
she must have been hooking
we must have been hooking
you must have been hooking
they must have been hooking	

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

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