should incur
Regular verb: incur - incurred- incurred

Affirmation 	
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I'd incur
you'd incur
he'd incur
we'd incur
you'd incur
they'd incur 	I'd be incurring
you'd be incurring
he'd be incurring
we'd be incurring
you'd be incurring
they'd be incurring	I should've incurred
you should've incurred
he should've incurred
we should've incurred
you should've incurred
they should've incurred	I should've been incurring
you should've been incurring
he should've been incurring
we should've been incurring
you should've been incurring
they should've been incurring	

Negation 	
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I shouldn't incur
you shouldn't incur
he shouldn't incur
we shouldn't incur
you shouldn't incur
they shouldn't incur 	I shouldn't be incurring
you shouldn't be incurring
he shouldn't be incurring
we shouldn't be incurring
you shouldn't be incurring
they shouldn't be incurring	I shouldn't have incurred
you shouldn't have incurred
he shouldn't have incurred
we shouldn't have incurred
you shouldn't have incurred
they shouldn't have incurred	I shouldn't have been incurring
you shouldn't have been incurring
he shouldn't have been incurring
we shouldn't have been incurring
you shouldn't have been incurring
they shouldn't have been incurring	

Interrogative form 	
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should I incur?
should you incur?
should he incur?
should we incur?
should you incur?
should they incur? 	should I be incurring?
should you be incurring?
should he be incurring?
should we be incurring?
should you be incurring?
should they be incurring? 	should I have incurred?
should you have incurred?
should he have incurred?
should we have incurred?
should you have incurred?
should they have incurred? 	should I have been incurring?
should you have been incurring?
should he have been incurring?
should we have been incurring?
should you have been incurring?
should they have been incurring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I incur?
shouldn't you incur?
shouldn't he incur?
shouldn't we incur?
shouldn't you incur?
shouldn't they incur? 	shouldn't I be incurring?
shouldn't you be incurring?
shouldn't he be incurring?
shouldn't we be incurring?
shouldn't you be incurring?
shouldn't they be incurring? 	shouldn't I have incurred?
shouldn't you have incurred?
shouldn't he have incurred?
shouldn't we have incurred?
shouldn't you have incurred?
shouldn't they have incurred? 	shouldn't I have been incurring?
shouldn't you have been incurring?
shouldn't he have been incurring?
shouldn't we have been incurring?
shouldn't you have been incurring?
shouldn't they have been incurring?