English verb conjugation
MUST CREPITATE

Regular verb: crepitate - crepitated - crepitated

Affirmation

Simple form	V-ing form
I must crepitate you must crepitate she must crepitate we must crepitate you must crepitate they must crepitate	I must be crepitating you must be crepitating she 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 she 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 she 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 she 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 she 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 she 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 she 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 she crepitate? must we crepitate? must you crepitate? must they crepitate?	must I be crepitating? must you be crepitating? must she 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 she 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 she 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 she 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 she 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 she 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 she have been crepitating? mustn't we have been crepitating? mustn't you have been crepitating? mustn't they have been crepitating?