English verb conjugation
COULD COAST

Regular verb: coast - coasted - coasted

Affirmation

Simple form	V-ing form
I could coast you could coast he could coast we could coast you could coast they could coast	I could be coasting you could be coasting he could be coasting we could be coasting you could be coasting they could be coasting
Perfect	V-ing perfect
I could have coasted you could have coasted he could have coasted we could have coasted you could have coasted they could have coasted	I could have been coasting you could have been coasting he could have been coasting we could have been coasting you could have been coasting they could have been coasting

Negation

Simple form	V-ing form
I could not coast you could not coast he could not coast we could not coast you could not coast they could not coast	I could not be coasting you could not be coasting he could not be coasting we could not be coasting you could not be coasting they could not be coasting
Perfect	V-ing perfect
I could not have coasted you could not have coasted he could not have coasted we could not have coasted you could not have coasted they could not have coasted	I could not have been coasting you could not have been coasting he could not have been coasting we could not have been coasting you could not have been coasting they could not have been coasting

Interrogative form

Simple form	V-ing form
could I coast? could you coast? could he coast? could we coast? could you coast? could they coast?	could I be coasting? could you be coasting? could he be coasting? could we be coasting? could you be coasting? could they be coasting?
Perfect	V-ing perfect
could I have coasted? could you have coasted? could he have coasted? could we have coasted? could you have coasted? could they have coasted?	could I have been coasting? could you have been coasting? could he have been coasting? could we have been coasting? could you have been coasting? could they have been coasting?

Interro-negative form

Simple form	V-ing form
could I not coast? could you not coast? could he not coast? could we not coast? could you not coast? could they not coast?	could I not be coasting? could you not be coasting? could he not be coasting? could we not be coasting? could you not be coasting? could they not be coasting?
Perfect	V-ing perfect
could I not have coasted? could you not have coasted? could he not have coasted? could we not have coasted? could you not have coasted? could they not have coasted?	could I not have been coasting? could you not have been coasting? could he not have been coasting? could we not have been coasting? could you not have been coasting? could they not have been coasting?