English verb conjugation
COULD SLATE

Regular verb: slate - slated - slated

Affirmation

Simple form	V-ing form
I could slate you could slate he could slate we could slate you could slate they could slate	I could be slating you could be slating he could be slating we could be slating you could be slating they could be slating
Perfect	V-ing perfect
I could have slated you could have slated he could have slated we could have slated you could have slated they could have slated	I could have been slating you could have been slating he could have been slating we could have been slating you could have been slating they could have been slating

Negation

Simple form	V-ing form
I couldn't slate you couldn't slate he couldn't slate we couldn't slate you couldn't slate they couldn't slate	I couldn't be slating you couldn't be slating he couldn't be slating we couldn't be slating you couldn't be slating they couldn't be slating
Perfect	V-ing perfect
I couldn't have slated you couldn't have slated he couldn't have slated we couldn't have slated you couldn't have slated they couldn't have slated	I couldn't have been slating you couldn't have been slating he couldn't have been slating we couldn't have been slating you couldn't have been slating they couldn't have been slating

Interrogative form

Simple form	V-ing form
could I slate? could you slate? could he slate? could we slate? could you slate? could they slate?	could I be slating? could you be slating? could he be slating? could we be slating? could you be slating? could they be slating?
Perfect	V-ing perfect
could I have slated? could you have slated? could he have slated? could we have slated? could you have slated? could they have slated?	could I have been slating? could you have been slating? could he have been slating? could we have been slating? could you have been slating? could they have been slating?

Interro-negative form

Simple form	V-ing form
couldn't I slate? couldn't you slate? couldn't he slate? couldn't we slate? couldn't you slate? couldn't they slate?	couldn't I be slating? couldn't you be slating? couldn't he be slating? couldn't we be slating? couldn't you be slating? couldn't they be slating?
Perfect	V-ing perfect
couldn't I have slated? couldn't you have slated? couldn't he have slated? couldn't we have slated? couldn't you have slated? couldn't they have slated?	couldn't I have been slating? couldn't you have been slating? couldn't he have been slating? couldn't we have been slating? couldn't you have been slating? couldn't they have been slating?