English verb conjugation
MUST CREPITATE

Regular verb: crepitate - crepitated - crepitated

Affirmation

Simple form	V-ing form
I must crepitate you must crepitate he must crepitate we must crepitate you must crepitate they must crepitate	I must be crepitating you must be crepitating he must be crepitating we must be crepitating you must be crepitating they must be crepitating
Perfect	V-ing perfect
I must have crepitated you must have crepitated he must have crepitated we must have crepitated you must have crepitated they must have crepitated	I must have been crepitating you must have been crepitating he must have been crepitating we must have been crepitating you must have been crepitating they must have been crepitating

Negation

Simple form	V-ing form
I mustn't crepitate you mustn't crepitate he mustn't crepitate we mustn't crepitate you mustn't crepitate they mustn't crepitate	I mustn't be crepitating you mustn't be crepitating he mustn't be crepitating we mustn't be crepitating you mustn't be crepitating they mustn't be crepitating
Perfect	V-ing perfect
I mustn't have crepitated you mustn't have crepitated he mustn't have crepitated we mustn't have crepitated you mustn't have crepitated they mustn't have crepitated	I mustn't have been crepitating you mustn't have been crepitating he mustn't have been crepitating we mustn't have been crepitating you mustn't have been crepitating they mustn't have been crepitating

Interrogative form

Simple form	V-ing form
must I crepitate? must you crepitate? must he crepitate? must we crepitate? must you crepitate? must they crepitate?	must I be crepitating? must you be crepitating? must he be crepitating? must we be crepitating? must you be crepitating? must they be crepitating?
Perfect	V-ing perfect
must I have crepitated? must you have crepitated? must he have crepitated? must we have crepitated? must you have crepitated? must they have crepitated?	must I have been crepitating? must you have been crepitating? must he have been crepitating? must we have been crepitating? must you have been crepitating? must they have been crepitating?

Interro-negative form

Simple form	V-ing form
mustn't I crepitate? mustn't you crepitate? mustn't he crepitate? mustn't we crepitate? mustn't you crepitate? mustn't they crepitate?	mustn't I be crepitating? mustn't you be crepitating? mustn't he be crepitating? mustn't we be crepitating? mustn't you be crepitating? mustn't they be crepitating?
Perfect	V-ing perfect
mustn't I have crepitated? mustn't you have crepitated? mustn't he have crepitated? mustn't we have crepitated? mustn't you have crepitated? mustn't they have crepitated?	mustn't I have been crepitating? mustn't you have been crepitating? mustn't he have been crepitating? mustn't we have been crepitating? mustn't you have been crepitating? mustn't they have been crepitating?