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 couldn't coast you couldn't coast he couldn't coast we couldn't coast you couldn't coast they couldn't coast	I couldn't be coasting you couldn't be coasting he couldn't be coasting we couldn't be coasting you couldn't be coasting they couldn't be coasting
Perfect	V-ing perfect
I couldn't have coasted you couldn't have coasted he couldn't have coasted we couldn't have coasted you couldn't have coasted they couldn't have coasted	I couldn't have been coasting you couldn't have been coasting he couldn't have been coasting we couldn't have been coasting you couldn't have been coasting they couldn't 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
couldn't I coast? couldn't you coast? couldn't he coast? couldn't we coast? couldn't you coast? couldn't they coast?	couldn't I be coasting? couldn't you be coasting? couldn't he be coasting? couldn't we be coasting? couldn't you be coasting? couldn't they be coasting?
Perfect	V-ing perfect
couldn't I have coasted? couldn't you have coasted? couldn't he have coasted? couldn't we have coasted? couldn't you have coasted? couldn't they have coasted?	couldn't I have been coasting? couldn't you have been coasting? couldn't he have been coasting? couldn't we have been coasting? couldn't you have been coasting? couldn't they have been coasting?