English verb conjugation
COULD OVERGRATIFY

Regular verb: overgratify - overgratified - overgratified

Affirmation

Simple form	V-ing form
I could overgratify you could overgratify he could overgratify we could overgratify you could overgratify they could overgratify	I could be overgratifying you could be overgratifying he could be overgratifying we could be overgratifying you could be overgratifying they could be overgratifying
Perfect	V-ing perfect
I could have overgratified you could have overgratified he could have overgratified we could have overgratified you could have overgratified they could have overgratified	I could have been overgratifying you could have been overgratifying he could have been overgratifying we could have been overgratifying you could have been overgratifying they could have been overgratifying

Negation

Simple form	V-ing form
I couldn't overgratify you couldn't overgratify he couldn't overgratify we couldn't overgratify you couldn't overgratify they couldn't overgratify	I couldn't be overgratifying you couldn't be overgratifying he couldn't be overgratifying we couldn't be overgratifying you couldn't be overgratifying they couldn't be overgratifying
Perfect	V-ing perfect
I couldn't have overgratified you couldn't have overgratified he couldn't have overgratified we couldn't have overgratified you couldn't have overgratified they couldn't have overgratified	I couldn't have been overgratifying you couldn't have been overgratifying he couldn't have been overgratifying we couldn't have been overgratifying you couldn't have been overgratifying they couldn't have been overgratifying

Interrogative form

Simple form	V-ing form
could I overgratify? could you overgratify? could he overgratify? could we overgratify? could you overgratify? could they overgratify?	could I be overgratifying? could you be overgratifying? could he be overgratifying? could we be overgratifying? could you be overgratifying? could they be overgratifying?
Perfect	V-ing perfect
could I have overgratified? could you have overgratified? could he have overgratified? could we have overgratified? could you have overgratified? could they have overgratified?	could I have been overgratifying? could you have been overgratifying? could he have been overgratifying? could we have been overgratifying? could you have been overgratifying? could they have been overgratifying?

Interro-negative form

Simple form	V-ing form
couldn't I overgratify? couldn't you overgratify? couldn't he overgratify? couldn't we overgratify? couldn't you overgratify? couldn't they overgratify?	couldn't I be overgratifying? couldn't you be overgratifying? couldn't he be overgratifying? couldn't we be overgratifying? couldn't you be overgratifying? couldn't they be overgratifying?
Perfect	V-ing perfect
couldn't I have overgratified? couldn't you have overgratified? couldn't he have overgratified? couldn't we have overgratified? couldn't you have overgratified? couldn't they have overgratified?	couldn't I have been overgratifying? couldn't you have been overgratifying? couldn't he have been overgratifying? couldn't we have been overgratifying? couldn't you have been overgratifying? couldn't they have been overgratifying?