should ferment
Regular verb: ferment - fermented- fermented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd ferment
you'd ferment
he'd ferment
we'd ferment
you'd ferment
they'd ferment 	I'd be fermenting
you'd be fermenting
he'd be fermenting
we'd be fermenting
you'd be fermenting
they'd be fermenting	I should've fermented
you should've fermented
he should've fermented
we should've fermented
you should've fermented
they should've fermented	I should've been fermenting
you should've been fermenting
he should've been fermenting
we should've been fermenting
you should've been fermenting
they should've been fermenting	

Negation 	
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I shouldn't ferment
you shouldn't ferment
he shouldn't ferment
we shouldn't ferment
you shouldn't ferment
they shouldn't ferment 	I shouldn't be fermenting
you shouldn't be fermenting
he shouldn't be fermenting
we shouldn't be fermenting
you shouldn't be fermenting
they shouldn't be fermenting	I shouldn't have fermented
you shouldn't have fermented
he shouldn't have fermented
we shouldn't have fermented
you shouldn't have fermented
they shouldn't have fermented	I shouldn't have been fermenting
you shouldn't have been fermenting
he shouldn't have been fermenting
we shouldn't have been fermenting
you shouldn't have been fermenting
they shouldn't have been fermenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I ferment?
should you ferment?
should he ferment?
should we ferment?
should you ferment?
should they ferment? 	should I be fermenting?
should you be fermenting?
should he be fermenting?
should we be fermenting?
should you be fermenting?
should they be fermenting? 	should I have fermented?
should you have fermented?
should he have fermented?
should we have fermented?
should you have fermented?
should they have fermented? 	should I have been fermenting?
should you have been fermenting?
should he have been fermenting?
should we have been fermenting?
should you have been fermenting?
should they have been fermenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I ferment?
shouldn't you ferment?
shouldn't he ferment?
shouldn't we ferment?
shouldn't you ferment?
shouldn't they ferment? 	shouldn't I be fermenting?
shouldn't you be fermenting?
shouldn't he be fermenting?
shouldn't we be fermenting?
shouldn't you be fermenting?
shouldn't they be fermenting? 	shouldn't I have fermented?
shouldn't you have fermented?
shouldn't he have fermented?
shouldn't we have fermented?
shouldn't you have fermented?
shouldn't they have fermented? 	shouldn't I have been fermenting?
shouldn't you have been fermenting?
shouldn't he have been fermenting?
shouldn't we have been fermenting?
shouldn't you have been fermenting?
shouldn't they have been fermenting?