English verb conjugation
COULD PRONATE

Regular verb: pronate - pronated - pronated

Affirmation

Simple form	V-ing form
I could pronate you could pronate he could pronate we could pronate you could pronate they could pronate	I could be pronating you could be pronating he could be pronating we could be pronating you could be pronating they could be pronating
Perfect	V-ing perfect
I could have pronated you could have pronated he could have pronated we could have pronated you could have pronated they could have pronated	I could have been pronating you could have been pronating he could have been pronating we could have been pronating you could have been pronating they could have been pronating

Negation

Simple form	V-ing form
I could not pronate you could not pronate he could not pronate we could not pronate you could not pronate they could not pronate	I could not be pronating you could not be pronating he could not be pronating we could not be pronating you could not be pronating they could not be pronating
Perfect	V-ing perfect
I could not have pronated you could not have pronated he could not have pronated we could not have pronated you could not have pronated they could not have pronated	I could not have been pronating you could not have been pronating he could not have been pronating we could not have been pronating you could not have been pronating they could not have been pronating

Interrogative form

Simple form	V-ing form
could I pronate? could you pronate? could he pronate? could we pronate? could you pronate? could they pronate?	could I be pronating? could you be pronating? could he be pronating? could we be pronating? could you be pronating? could they be pronating?
Perfect	V-ing perfect
could I have pronated? could you have pronated? could he have pronated? could we have pronated? could you have pronated? could they have pronated?	could I have been pronating? could you have been pronating? could he have been pronating? could we have been pronating? could you have been pronating? could they have been pronating?

Interro-negative form

Simple form	V-ing form
could I not pronate? could you not pronate? could he not pronate? could we not pronate? could you not pronate? could they not pronate?	could I not be pronating? could you not be pronating? could he not be pronating? could we not be pronating? could you not be pronating? could they not be pronating?
Perfect	V-ing perfect
could I not have pronated? could you not have pronated? could he not have pronated? could we not have pronated? could you not have pronated? could they not have pronated?	could I not have been pronating? could you not have been pronating? could he not have been pronating? could we not have been pronating? could you not have been pronating? could they not have been pronating?