English verb conjugation
COULD SUPERHEAT

Regular verb: superheat - superheated - superheated

Affirmation

Simple form	V-ing form
I could superheat you could superheat he could superheat we could superheat you could superheat they could superheat	I could be superheating you could be superheating he could be superheating we could be superheating you could be superheating they could be superheating
Perfect	V-ing perfect
I could have superheated you could have superheated he could have superheated we could have superheated you could have superheated they could have superheated	I could have been superheating you could have been superheating he could have been superheating we could have been superheating you could have been superheating they could have been superheating

Negation

Simple form	V-ing form
I couldn't superheat you couldn't superheat he couldn't superheat we couldn't superheat you couldn't superheat they couldn't superheat	I couldn't be superheating you couldn't be superheating he couldn't be superheating we couldn't be superheating you couldn't be superheating they couldn't be superheating
Perfect	V-ing perfect
I couldn't have superheated you couldn't have superheated he couldn't have superheated we couldn't have superheated you couldn't have superheated they couldn't have superheated	I couldn't have been superheating you couldn't have been superheating he couldn't have been superheating we couldn't have been superheating you couldn't have been superheating they couldn't have been superheating

Interrogative form

Simple form	V-ing form
could I superheat? could you superheat? could he superheat? could we superheat? could you superheat? could they superheat?	could I be superheating? could you be superheating? could he be superheating? could we be superheating? could you be superheating? could they be superheating?
Perfect	V-ing perfect
could I have superheated? could you have superheated? could he have superheated? could we have superheated? could you have superheated? could they have superheated?	could I have been superheating? could you have been superheating? could he have been superheating? could we have been superheating? could you have been superheating? could they have been superheating?

Interro-negative form

Simple form	V-ing form
couldn't I superheat? couldn't you superheat? couldn't he superheat? couldn't we superheat? couldn't you superheat? couldn't they superheat?	couldn't I be superheating? couldn't you be superheating? couldn't he be superheating? couldn't we be superheating? couldn't you be superheating? couldn't they be superheating?
Perfect	V-ing perfect
couldn't I have superheated? couldn't you have superheated? couldn't he have superheated? couldn't we have superheated? couldn't you have superheated? couldn't they have superheated?	couldn't I have been superheating? couldn't you have been superheating? couldn't he have been superheating? couldn't we have been superheating? couldn't you have been superheating? couldn't they have been superheating?