English verb conjugation
SHOULD COMBAT

Regular verb: combat - combated - combated

Affirmation

Simple form	V-ing form
I'd combat you'd combat she'd combat we'd combat you'd combat they'd combat	I'd be combating you'd be combating she'd be combating we'd be combating you'd be combating they'd be combating
Perfect	V-ing perfect
I should've combated you should've combated she 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 she 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
I shouldn't combat you shouldn't combat she 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 she shouldn't be combating we shouldn't be combating you shouldn't be combating they shouldn't be combating
Perfect	V-ing perfect
I shouldn't have combated you shouldn't have combated she 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 she 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
should I combat? should you combat? should she combat? should we combat? should you combat? should they combat?	should I be combating? should you be combating? should she be combating? should we be combating? should you be combating? should they be combating?
Perfect	V-ing perfect
should I have combated? should you have combated? should she 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 she 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
shouldn't I combat? shouldn't you combat? shouldn't she 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 she be combating? shouldn't we be combating? shouldn't you be combating? shouldn't they be combating?
Perfect	V-ing perfect
shouldn't I have combated? shouldn't you have combated? shouldn't she 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 she have been combating? shouldn't we have been combating? shouldn't you have been combating? shouldn't they have been combating?