English verb conjugation
MUST CACHINNATE

Regular verb: cachinnate - cachinnated - cachinnated

Affirmation

Simple form	V-ing form
I must cachinnate you must cachinnate she must cachinnate we must cachinnate you must cachinnate they must cachinnate	I must be cachinnating you must be cachinnating she must be cachinnating we must be cachinnating you must be cachinnating they must be cachinnating
Perfect	V-ing perfect
I must have cachinnated you must have cachinnated she must have cachinnated we must have cachinnated you must have cachinnated they must have cachinnated	I must have been cachinnating you must have been cachinnating she must have been cachinnating we must have been cachinnating you must have been cachinnating they must have been cachinnating

Negation

Simple form	V-ing form
I must not cachinnate you must not cachinnate she must not cachinnate we must not cachinnate you must not cachinnate they must not cachinnate	I must not be cachinnating you must not be cachinnating she must not be cachinnating we must not be cachinnating you must not be cachinnating they must not be cachinnating
Perfect	V-ing perfect
I must not have cachinnated you must not have cachinnated she must not have cachinnated we must not have cachinnated you must not have cachinnated they must not have cachinnated	I must not have been cachinnating you must not have been cachinnating she must not have been cachinnating we must not have been cachinnating you must not have been cachinnating they must not have been cachinnating

Interrogative form

Simple form	V-ing form
must I cachinnate? must you cachinnate? must she cachinnate? must we cachinnate? must you cachinnate? must they cachinnate?	must I be cachinnating? must you be cachinnating? must she be cachinnating? must we be cachinnating? must you be cachinnating? must they be cachinnating?
Perfect	V-ing perfect
must I have cachinnated? must you have cachinnated? must she have cachinnated? must we have cachinnated? must you have cachinnated? must they have cachinnated?	must I have been cachinnating? must you have been cachinnating? must she have been cachinnating? must we have been cachinnating? must you have been cachinnating? must they have been cachinnating?

Interro-negative form

Simple form	V-ing form
must I not cachinnate? must you not cachinnate? must she not cachinnate? must we not cachinnate? must you not cachinnate? must they not cachinnate?	must I not be cachinnating? must you not be cachinnating? must she not be cachinnating? must we not be cachinnating? must you not be cachinnating? must they not be cachinnating?
Perfect	V-ing perfect
must I not have cachinnated? must you not have cachinnated? must she not have cachinnated? must we not have cachinnated? must you not have cachinnated? must they not have cachinnated?	must I not have been cachinnating? must you not have been cachinnating? must she not have been cachinnating? must we not have been cachinnating? must you not have been cachinnating? must they not have been cachinnating?