English verb conjugation
COULD CHAGRIN

Regular verb: chagrin - chagrined - chagrined

Affirmation

Simple form	V-ing form
I could chagrin you could chagrin he could chagrin we could chagrin you could chagrin they could chagrin	I could be chagrining you could be chagrining he could be chagrining we could be chagrining you could be chagrining they could be chagrining
Perfect	V-ing perfect
I could have chagrined you could have chagrined he could have chagrined we could have chagrined you could have chagrined they could have chagrined	I could have been chagrining you could have been chagrining he could have been chagrining we could have been chagrining you could have been chagrining they could have been chagrining

Negation

Simple form	V-ing form
I couldn't chagrin you couldn't chagrin he couldn't chagrin we couldn't chagrin you couldn't chagrin they couldn't chagrin	I couldn't be chagrining you couldn't be chagrining he couldn't be chagrining we couldn't be chagrining you couldn't be chagrining they couldn't be chagrining
Perfect	V-ing perfect
I couldn't have chagrined you couldn't have chagrined he couldn't have chagrined we couldn't have chagrined you couldn't have chagrined they couldn't have chagrined	I couldn't have been chagrining you couldn't have been chagrining he couldn't have been chagrining we couldn't have been chagrining you couldn't have been chagrining they couldn't have been chagrining

Interrogative form

Simple form	V-ing form
could I chagrin? could you chagrin? could he chagrin? could we chagrin? could you chagrin? could they chagrin?	could I be chagrining? could you be chagrining? could he be chagrining? could we be chagrining? could you be chagrining? could they be chagrining?
Perfect	V-ing perfect
could I have chagrined? could you have chagrined? could he have chagrined? could we have chagrined? could you have chagrined? could they have chagrined?	could I have been chagrining? could you have been chagrining? could he have been chagrining? could we have been chagrining? could you have been chagrining? could they have been chagrining?

Interro-negative form

Simple form	V-ing form
couldn't I chagrin? couldn't you chagrin? couldn't he chagrin? couldn't we chagrin? couldn't you chagrin? couldn't they chagrin?	couldn't I be chagrining? couldn't you be chagrining? couldn't he be chagrining? couldn't we be chagrining? couldn't you be chagrining? couldn't they be chagrining?
Perfect	V-ing perfect
couldn't I have chagrined? couldn't you have chagrined? couldn't he have chagrined? couldn't we have chagrined? couldn't you have chagrined? couldn't they have chagrined?	couldn't I have been chagrining? couldn't you have been chagrining? couldn't he have been chagrining? couldn't we have been chagrining? couldn't you have been chagrining? couldn't they have been chagrining?