should muse
Regular verb: muse - mused- mused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd muse
you'd muse
she'd muse
we'd muse
you'd muse
they'd muse 	I'd be musing
you'd be musing
she'd be musing
we'd be musing
you'd be musing
they'd be musing	I should've mused
you should've mused
she should've mused
we should've mused
you should've mused
they should've mused	I should've been musing
you should've been musing
she should've been musing
we should've been musing
you should've been musing
they should've been musing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't muse
you shouldn't muse
she shouldn't muse
we shouldn't muse
you shouldn't muse
they shouldn't muse 	I shouldn't be musing
you shouldn't be musing
she shouldn't be musing
we shouldn't be musing
you shouldn't be musing
they shouldn't be musing	I shouldn't have mused
you shouldn't have mused
she shouldn't have mused
we shouldn't have mused
you shouldn't have mused
they shouldn't have mused	I shouldn't have been musing
you shouldn't have been musing
she shouldn't have been musing
we shouldn't have been musing
you shouldn't have been musing
they shouldn't have been musing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I muse?
should you muse?
should she muse?
should we muse?
should you muse?
should they muse? 	should I be musing?
should you be musing?
should she be musing?
should we be musing?
should you be musing?
should they be musing? 	should I have mused?
should you have mused?
should she have mused?
should we have mused?
should you have mused?
should they have mused? 	should I have been musing?
should you have been musing?
should she have been musing?
should we have been musing?
should you have been musing?
should they have been musing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I muse?
shouldn't you muse?
shouldn't she muse?
shouldn't we muse?
shouldn't you muse?
shouldn't they muse? 	shouldn't I be musing?
shouldn't you be musing?
shouldn't she be musing?
shouldn't we be musing?
shouldn't you be musing?
shouldn't they be musing? 	shouldn't I have mused?
shouldn't you have mused?
shouldn't she have mused?
shouldn't we have mused?
shouldn't you have mused?
shouldn't they have mused? 	shouldn't I have been musing?
shouldn't you have been musing?
shouldn't she have been musing?
shouldn't we have been musing?
shouldn't you have been musing?
shouldn't they have been musing?