should untangle
Regular verb: untangle - untangled- untangled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd untangle
you'd untangle
he'd untangle
we'd untangle
you'd untangle
they'd untangle 	I'd be untangling
you'd be untangling
he'd be untangling
we'd be untangling
you'd be untangling
they'd be untangling	I should've untangled
you should've untangled
he should've untangled
we should've untangled
you should've untangled
they should've untangled	I should've been untangling
you should've been untangling
he should've been untangling
we should've been untangling
you should've been untangling
they should've been untangling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't untangle
you shouldn't untangle
he shouldn't untangle
we shouldn't untangle
you shouldn't untangle
they shouldn't untangle 	I shouldn't be untangling
you shouldn't be untangling
he shouldn't be untangling
we shouldn't be untangling
you shouldn't be untangling
they shouldn't be untangling	I shouldn't have untangled
you shouldn't have untangled
he shouldn't have untangled
we shouldn't have untangled
you shouldn't have untangled
they shouldn't have untangled	I shouldn't have been untangling
you shouldn't have been untangling
he shouldn't have been untangling
we shouldn't have been untangling
you shouldn't have been untangling
they shouldn't have been untangling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I untangle?
should you untangle?
should he untangle?
should we untangle?
should you untangle?
should they untangle? 	should I be untangling?
should you be untangling?
should he be untangling?
should we be untangling?
should you be untangling?
should they be untangling? 	should I have untangled?
should you have untangled?
should he have untangled?
should we have untangled?
should you have untangled?
should they have untangled? 	should I have been untangling?
should you have been untangling?
should he have been untangling?
should we have been untangling?
should you have been untangling?
should they have been untangling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I untangle?
shouldn't you untangle?
shouldn't he untangle?
shouldn't we untangle?
shouldn't you untangle?
shouldn't they untangle? 	shouldn't I be untangling?
shouldn't you be untangling?
shouldn't he be untangling?
shouldn't we be untangling?
shouldn't you be untangling?
shouldn't they be untangling? 	shouldn't I have untangled?
shouldn't you have untangled?
shouldn't he have untangled?
shouldn't we have untangled?
shouldn't you have untangled?
shouldn't they have untangled? 	shouldn't I have been untangling?
shouldn't you have been untangling?
shouldn't he have been untangling?
shouldn't we have been untangling?
shouldn't you have been untangling?
shouldn't they have been untangling?