English verb conjugation
COULD OUTSPARKLE

Regular verb: outsparkle - outsparkled - outsparkled

Affirmation

Simple form	V-ing form
I could outsparkle you could outsparkle he could outsparkle we could outsparkle you could outsparkle they could outsparkle	I could be outsparkling you could be outsparkling he could be outsparkling we could be outsparkling you could be outsparkling they could be outsparkling
Perfect	V-ing perfect
I could have outsparkled you could have outsparkled he could have outsparkled we could have outsparkled you could have outsparkled they could have outsparkled	I could have been outsparkling you could have been outsparkling he could have been outsparkling we could have been outsparkling you could have been outsparkling they could have been outsparkling

Negation

Simple form	V-ing form
I couldn't outsparkle you couldn't outsparkle he couldn't outsparkle we couldn't outsparkle you couldn't outsparkle they couldn't outsparkle	I couldn't be outsparkling you couldn't be outsparkling he couldn't be outsparkling we couldn't be outsparkling you couldn't be outsparkling they couldn't be outsparkling
Perfect	V-ing perfect
I couldn't have outsparkled you couldn't have outsparkled he couldn't have outsparkled we couldn't have outsparkled you couldn't have outsparkled they couldn't have outsparkled	I couldn't have been outsparkling you couldn't have been outsparkling he couldn't have been outsparkling we couldn't have been outsparkling you couldn't have been outsparkling they couldn't have been outsparkling

Interrogative form

Simple form	V-ing form
could I outsparkle? could you outsparkle? could he outsparkle? could we outsparkle? could you outsparkle? could they outsparkle?	could I be outsparkling? could you be outsparkling? could he be outsparkling? could we be outsparkling? could you be outsparkling? could they be outsparkling?
Perfect	V-ing perfect
could I have outsparkled? could you have outsparkled? could he have outsparkled? could we have outsparkled? could you have outsparkled? could they have outsparkled?	could I have been outsparkling? could you have been outsparkling? could he have been outsparkling? could we have been outsparkling? could you have been outsparkling? could they have been outsparkling?

Interro-negative form

Simple form	V-ing form
couldn't I outsparkle? couldn't you outsparkle? couldn't he outsparkle? couldn't we outsparkle? couldn't you outsparkle? couldn't they outsparkle?	couldn't I be outsparkling? couldn't you be outsparkling? couldn't he be outsparkling? couldn't we be outsparkling? couldn't you be outsparkling? couldn't they be outsparkling?
Perfect	V-ing perfect
couldn't I have outsparkled? couldn't you have outsparkled? couldn't he have outsparkled? couldn't we have outsparkled? couldn't you have outsparkled? couldn't they have outsparkled?	couldn't I have been outsparkling? couldn't you have been outsparkling? couldn't he have been outsparkling? couldn't we have been outsparkling? couldn't you have been outsparkling? couldn't they have been outsparkling?