English verb conjugation
MUST COEXTEND

Regular verb: coextend - coextended - coextended

Affirmation

Simple form	V-ing form
I must coextend you must coextend he must coextend we must coextend you must coextend they must coextend	I must be coextending you must be coextending he must be coextending we must be coextending you must be coextending they must be coextending
Perfect	V-ing perfect
I must have coextended you must have coextended he must have coextended we must have coextended you must have coextended they must have coextended	I must have been coextending you must have been coextending he must have been coextending we must have been coextending you must have been coextending they must have been coextending

Negation

Simple form	V-ing form
I mustn't coextend you mustn't coextend he mustn't coextend we mustn't coextend you mustn't coextend they mustn't coextend	I mustn't be coextending you mustn't be coextending he mustn't be coextending we mustn't be coextending you mustn't be coextending they mustn't be coextending
Perfect	V-ing perfect
I mustn't have coextended you mustn't have coextended he mustn't have coextended we mustn't have coextended you mustn't have coextended they mustn't have coextended	I mustn't have been coextending you mustn't have been coextending he mustn't have been coextending we mustn't have been coextending you mustn't have been coextending they mustn't have been coextending

Interrogative form

Simple form	V-ing form
must I coextend? must you coextend? must he coextend? must we coextend? must you coextend? must they coextend?	must I be coextending? must you be coextending? must he be coextending? must we be coextending? must you be coextending? must they be coextending?
Perfect	V-ing perfect
must I have coextended? must you have coextended? must he have coextended? must we have coextended? must you have coextended? must they have coextended?	must I have been coextending? must you have been coextending? must he have been coextending? must we have been coextending? must you have been coextending? must they have been coextending?

Interro-negative form

Simple form	V-ing form
mustn't I coextend? mustn't you coextend? mustn't he coextend? mustn't we coextend? mustn't you coextend? mustn't they coextend?	mustn't I be coextending? mustn't you be coextending? mustn't he be coextending? mustn't we be coextending? mustn't you be coextending? mustn't they be coextending?
Perfect	V-ing perfect
mustn't I have coextended? mustn't you have coextended? mustn't he have coextended? mustn't we have coextended? mustn't you have coextended? mustn't they have coextended?	mustn't I have been coextending? mustn't you have been coextending? mustn't he have been coextending? mustn't we have been coextending? mustn't you have been coextending? mustn't they have been coextending?