English verb conjugation
MUST CASTAWAY

Regular verb: castaway - castawayed - castawayed

Affirmation

Simple form	V-ing form
I must castaway you must castaway he must castaway we must castaway you must castaway they must castaway	I must be castawaying you must be castawaying he must be castawaying we must be castawaying you must be castawaying they must be castawaying
Perfect	V-ing perfect
I must have castawayed you must have castawayed he must have castawayed we must have castawayed you must have castawayed they must have castawayed	I must have been castawaying you must have been castawaying he must have been castawaying we must have been castawaying you must have been castawaying they must have been castawaying

Negation

Simple form	V-ing form
I mustn't castaway you mustn't castaway he mustn't castaway we mustn't castaway you mustn't castaway they mustn't castaway	I mustn't be castawaying you mustn't be castawaying he mustn't be castawaying we mustn't be castawaying you mustn't be castawaying they mustn't be castawaying
Perfect	V-ing perfect
I mustn't have castawayed you mustn't have castawayed he mustn't have castawayed we mustn't have castawayed you mustn't have castawayed they mustn't have castawayed	I mustn't have been castawaying you mustn't have been castawaying he mustn't have been castawaying we mustn't have been castawaying you mustn't have been castawaying they mustn't have been castawaying

Interrogative form

Simple form	V-ing form
must I castaway? must you castaway? must he castaway? must we castaway? must you castaway? must they castaway?	must I be castawaying? must you be castawaying? must he be castawaying? must we be castawaying? must you be castawaying? must they be castawaying?
Perfect	V-ing perfect
must I have castawayed? must you have castawayed? must he have castawayed? must we have castawayed? must you have castawayed? must they have castawayed?	must I have been castawaying? must you have been castawaying? must he have been castawaying? must we have been castawaying? must you have been castawaying? must they have been castawaying?

Interro-negative form

Simple form	V-ing form
mustn't I castaway? mustn't you castaway? mustn't he castaway? mustn't we castaway? mustn't you castaway? mustn't they castaway?	mustn't I be castawaying? mustn't you be castawaying? mustn't he be castawaying? mustn't we be castawaying? mustn't you be castawaying? mustn't they be castawaying?
Perfect	V-ing perfect
mustn't I have castawayed? mustn't you have castawayed? mustn't he have castawayed? mustn't we have castawayed? mustn't you have castawayed? mustn't they have castawayed?	mustn't I have been castawaying? mustn't you have been castawaying? mustn't he have been castawaying? mustn't we have been castawaying? mustn't you have been castawaying? mustn't they have been castawaying?