should combat
Regular verb: combat - combated- combated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd combat
you'd combat
he'd combat
we'd combat
you'd combat
they'd combat 	I'd be combating
you'd be combating
he'd be combating
we'd be combating
you'd be combating
they'd be combating	I should've combated
you should've combated
he should've combated
we should've combated
you should've combated
they should've combated	I should've been combating
you should've been combating
he should've been combating
we should've been combating
you should've been combating
they should've been combating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't combat
you shouldn't combat
he shouldn't combat
we shouldn't combat
you shouldn't combat
they shouldn't combat 	I shouldn't be combating
you shouldn't be combating
he shouldn't be combating
we shouldn't be combating
you shouldn't be combating
they shouldn't be combating	I shouldn't have combated
you shouldn't have combated
he shouldn't have combated
we shouldn't have combated
you shouldn't have combated
they shouldn't have combated	I shouldn't have been combating
you shouldn't have been combating
he shouldn't have been combating
we shouldn't have been combating
you shouldn't have been combating
they shouldn't have been combating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I combat?
should you combat?
should he combat?
should we combat?
should you combat?
should they combat? 	should I be combating?
should you be combating?
should he be combating?
should we be combating?
should you be combating?
should they be combating? 	should I have combated?
should you have combated?
should he have combated?
should we have combated?
should you have combated?
should they have combated? 	should I have been combating?
should you have been combating?
should he have been combating?
should we have been combating?
should you have been combating?
should they have been combating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I combat?
shouldn't you combat?
shouldn't he combat?
shouldn't we combat?
shouldn't you combat?
shouldn't they combat? 	shouldn't I be combating?
shouldn't you be combating?
shouldn't he be combating?
shouldn't we be combating?
shouldn't you be combating?
shouldn't they be combating? 	shouldn't I have combated?
shouldn't you have combated?
shouldn't he have combated?
shouldn't we have combated?
shouldn't you have combated?
shouldn't they have combated? 	shouldn't I have been combating?
shouldn't you have been combating?
shouldn't he have been combating?
shouldn't we have been combating?
shouldn't you have been combating?
shouldn't they have been combating?