must bar
Regular verb: bar - barred- barred

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bar
you must bar
he must bar
we must bar
you must bar
they must bar 	I must be barring
you must be barring
he must be barring
we must be barring
you must be barring
they must be barring	I must have barred
you must have barred
he must have barred
we must have barred
you must have barred
they must have barred	I must have been barring
you must have been barring
he must have been barring
we must have been barring
you must have been barring
they must have been barring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not bar
you must not bar
he must not bar
we must not bar
you must not bar
they must not bar 	I must not be barring
you must not be barring
he must not be barring
we must not be barring
you must not be barring
they must not be barring	I must not have barred
you must not have barred
he must not have barred
we must not have barred
you must not have barred
they must not have barred	I must not have been barring
you must not have been barring
he must not have been barring
we must not have been barring
you must not have been barring
they must not have been barring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bar?
must you bar?
must he bar?
must we bar?
must you bar?
must they bar? 	must I be barring?
must you be barring?
must he be barring?
must we be barring?
must you be barring?
must they be barring? 	must I have barred?
must you have barred?
must he have barred?
must we have barred?
must you have barred?
must they have barred? 	must I have been barring?
must you have been barring?
must he have been barring?
must we have been barring?
must you have been barring?
must they have been barring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not bar?
must you not bar?
must he not bar?
must we not bar?
must you not bar?
must they not bar? 	must I not be barring?
must you not be barring?
must he not be barring?
must we not be barring?
must you not be barring?
must they not be barring? 	must I not have barred?
must you not have barred?
must he not have barred?
must we not have barred?
must you not have barred?
must they not have barred? 	must I not have been barring?
must you not have been barring?
must he not have been barring?
must we not have been barring?
must you not have been barring?
must they not have been barring?