should trickle
Regular verb: trickle - trickled- trickled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd trickle
you'd trickle
he'd trickle
we'd trickle
you'd trickle
they'd trickle 	I'd be trickling
you'd be trickling
he'd be trickling
we'd be trickling
you'd be trickling
they'd be trickling	I should've trickled
you should've trickled
he should've trickled
we should've trickled
you should've trickled
they should've trickled	I should've been trickling
you should've been trickling
he should've been trickling
we should've been trickling
you should've been trickling
they should've been trickling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't trickle
you shouldn't trickle
he shouldn't trickle
we shouldn't trickle
you shouldn't trickle
they shouldn't trickle 	I shouldn't be trickling
you shouldn't be trickling
he shouldn't be trickling
we shouldn't be trickling
you shouldn't be trickling
they shouldn't be trickling	I shouldn't have trickled
you shouldn't have trickled
he shouldn't have trickled
we shouldn't have trickled
you shouldn't have trickled
they shouldn't have trickled	I shouldn't have been trickling
you shouldn't have been trickling
he shouldn't have been trickling
we shouldn't have been trickling
you shouldn't have been trickling
they shouldn't have been trickling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I trickle?
should you trickle?
should he trickle?
should we trickle?
should you trickle?
should they trickle? 	should I be trickling?
should you be trickling?
should he be trickling?
should we be trickling?
should you be trickling?
should they be trickling? 	should I have trickled?
should you have trickled?
should he have trickled?
should we have trickled?
should you have trickled?
should they have trickled? 	should I have been trickling?
should you have been trickling?
should he have been trickling?
should we have been trickling?
should you have been trickling?
should they have been trickling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I trickle?
shouldn't you trickle?
shouldn't he trickle?
shouldn't we trickle?
shouldn't you trickle?
shouldn't they trickle? 	shouldn't I be trickling?
shouldn't you be trickling?
shouldn't he be trickling?
shouldn't we be trickling?
shouldn't you be trickling?
shouldn't they be trickling? 	shouldn't I have trickled?
shouldn't you have trickled?
shouldn't he have trickled?
shouldn't we have trickled?
shouldn't you have trickled?
shouldn't they have trickled? 	shouldn't I have been trickling?
shouldn't you have been trickling?
shouldn't he have been trickling?
shouldn't we have been trickling?
shouldn't you have been trickling?
shouldn't they have been trickling?