English verb conjugation
MUST COAST

Regular verb: coast - coasted - coasted

Affirmation

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

Negation

Simple form	V-ing form
I mustn't coast you mustn't coast he mustn't coast we mustn't coast you mustn't coast they mustn't coast	I mustn't be coasting you mustn't be coasting he mustn't be coasting we mustn't be coasting you mustn't be coasting they mustn't be coasting
Perfect	V-ing perfect
I mustn't have coasted you mustn't have coasted he mustn't have coasted we mustn't have coasted you mustn't have coasted they mustn't have coasted	I mustn't have been coasting you mustn't have been coasting he mustn't have been coasting we mustn't have been coasting you mustn't have been coasting they mustn't have been coasting

Interrogative form

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

Interro-negative form

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