must blush
Regular verb: blush - blushed- blushed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must blush
you must blush
she must blush
we must blush
you must blush
they must blush 	I must be blushing
you must be blushing
she must be blushing
we must be blushing
you must be blushing
they must be blushing	I must have blushed
you must have blushed
she must have blushed
we must have blushed
you must have blushed
they must have blushed	I must have been blushing
you must have been blushing
she must have been blushing
we must have been blushing
you must have been blushing
they must have been blushing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not blush
you must not blush
she must not blush
we must not blush
you must not blush
they must not blush 	I must not be blushing
you must not be blushing
she must not be blushing
we must not be blushing
you must not be blushing
they must not be blushing	I must not have blushed
you must not have blushed
she must not have blushed
we must not have blushed
you must not have blushed
they must not have blushed	I must not have been blushing
you must not have been blushing
she must not have been blushing
we must not have been blushing
you must not have been blushing
they must not have been blushing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I blush?
must you blush?
must she blush?
must we blush?
must you blush?
must they blush? 	must I be blushing?
must you be blushing?
must she be blushing?
must we be blushing?
must you be blushing?
must they be blushing? 	must I have blushed?
must you have blushed?
must she have blushed?
must we have blushed?
must you have blushed?
must they have blushed? 	must I have been blushing?
must you have been blushing?
must she have been blushing?
must we have been blushing?
must you have been blushing?
must they have been blushing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not blush?
must you not blush?
must she not blush?
must we not blush?
must you not blush?
must they not blush? 	must I not be blushing?
must you not be blushing?
must she not be blushing?
must we not be blushing?
must you not be blushing?
must they not be blushing? 	must I not have blushed?
must you not have blushed?
must she not have blushed?
must we not have blushed?
must you not have blushed?
must they not have blushed? 	must I not have been blushing?
must you not have been blushing?
must she not have been blushing?
must we not have been blushing?
must you not have been blushing?
must they not have been blushing?