English verb conjugation
COULD STUN

Regular verb: stun - stunned - stunned

Affirmation

Simple form	V-ing form
I could stun you could stun she could stun we could stun you could stun they could stun	I could be stunning you could be stunning she could be stunning we could be stunning you could be stunning they could be stunning
Perfect	V-ing perfect
I could have stunned you could have stunned she could have stunned we could have stunned you could have stunned they could have stunned	I could have been stunning you could have been stunning she could have been stunning we could have been stunning you could have been stunning they could have been stunning

Negation

Simple form	V-ing form
I couldn't stun you couldn't stun she couldn't stun we couldn't stun you couldn't stun they couldn't stun	I couldn't be stunning you couldn't be stunning she couldn't be stunning we couldn't be stunning you couldn't be stunning they couldn't be stunning
Perfect	V-ing perfect
I couldn't have stunned you couldn't have stunned she couldn't have stunned we couldn't have stunned you couldn't have stunned they couldn't have stunned	I couldn't have been stunning you couldn't have been stunning she couldn't have been stunning we couldn't have been stunning you couldn't have been stunning they couldn't have been stunning

Interrogative form

Simple form	V-ing form
could I stun? could you stun? could she stun? could we stun? could you stun? could they stun?	could I be stunning? could you be stunning? could she be stunning? could we be stunning? could you be stunning? could they be stunning?
Perfect	V-ing perfect
could I have stunned? could you have stunned? could she have stunned? could we have stunned? could you have stunned? could they have stunned?	could I have been stunning? could you have been stunning? could she have been stunning? could we have been stunning? could you have been stunning? could they have been stunning?

Interro-negative form

Simple form	V-ing form
couldn't I stun? couldn't you stun? couldn't she stun? couldn't we stun? couldn't you stun? couldn't they stun?	couldn't I be stunning? couldn't you be stunning? couldn't she be stunning? couldn't we be stunning? couldn't you be stunning? couldn't they be stunning?
Perfect	V-ing perfect
couldn't I have stunned? couldn't you have stunned? couldn't she have stunned? couldn't we have stunned? couldn't you have stunned? couldn't they have stunned?	couldn't I have been stunning? couldn't you have been stunning? couldn't she have been stunning? couldn't we have been stunning? couldn't you have been stunning? couldn't they have been stunning?