English verb conjugation
COULD REHYDRATE

Regular verb: rehydrate - rehydrated - rehydrated

Affirmation

Simple form	V-ing form
I could rehydrate you could rehydrate he could rehydrate we could rehydrate you could rehydrate they could rehydrate	I could be rehydrating you could be rehydrating he could be rehydrating we could be rehydrating you could be rehydrating they could be rehydrating
Perfect	V-ing perfect
I could have rehydrated you could have rehydrated he could have rehydrated we could have rehydrated you could have rehydrated they could have rehydrated	I could have been rehydrating you could have been rehydrating he could have been rehydrating we could have been rehydrating you could have been rehydrating they could have been rehydrating

Negation

Simple form	V-ing form
I couldn't rehydrate you couldn't rehydrate he couldn't rehydrate we couldn't rehydrate you couldn't rehydrate they couldn't rehydrate	I couldn't be rehydrating you couldn't be rehydrating he couldn't be rehydrating we couldn't be rehydrating you couldn't be rehydrating they couldn't be rehydrating
Perfect	V-ing perfect
I couldn't have rehydrated you couldn't have rehydrated he couldn't have rehydrated we couldn't have rehydrated you couldn't have rehydrated they couldn't have rehydrated	I couldn't have been rehydrating you couldn't have been rehydrating he couldn't have been rehydrating we couldn't have been rehydrating you couldn't have been rehydrating they couldn't have been rehydrating

Interrogative form

Simple form	V-ing form
could I rehydrate? could you rehydrate? could he rehydrate? could we rehydrate? could you rehydrate? could they rehydrate?	could I be rehydrating? could you be rehydrating? could he be rehydrating? could we be rehydrating? could you be rehydrating? could they be rehydrating?
Perfect	V-ing perfect
could I have rehydrated? could you have rehydrated? could he have rehydrated? could we have rehydrated? could you have rehydrated? could they have rehydrated?	could I have been rehydrating? could you have been rehydrating? could he have been rehydrating? could we have been rehydrating? could you have been rehydrating? could they have been rehydrating?

Interro-negative form

Simple form	V-ing form
couldn't I rehydrate? couldn't you rehydrate? couldn't he rehydrate? couldn't we rehydrate? couldn't you rehydrate? couldn't they rehydrate?	couldn't I be rehydrating? couldn't you be rehydrating? couldn't he be rehydrating? couldn't we be rehydrating? couldn't you be rehydrating? couldn't they be rehydrating?
Perfect	V-ing perfect
couldn't I have rehydrated? couldn't you have rehydrated? couldn't he have rehydrated? couldn't we have rehydrated? couldn't you have rehydrated? couldn't they have rehydrated?	couldn't I have been rehydrating? couldn't you have been rehydrating? couldn't he have been rehydrating? couldn't we have been rehydrating? couldn't you have been rehydrating? couldn't they have been rehydrating?