English verb conjugation
MUST PRATTLE

Regular verb: prattle - prattled - prattled

Affirmation

Simple form	V-ing form
I must prattle you must prattle he must prattle we must prattle you must prattle they must prattle	I must be prattling you must be prattling he must be prattling we must be prattling you must be prattling they must be prattling
Perfect	V-ing perfect
I must have prattled you must have prattled he must have prattled we must have prattled you must have prattled they must have prattled	I must have been prattling you must have been prattling he must have been prattling we must have been prattling you must have been prattling they must have been prattling

Negation

Simple form	V-ing form
I must not prattle you must not prattle he must not prattle we must not prattle you must not prattle they must not prattle	I must not be prattling you must not be prattling he must not be prattling we must not be prattling you must not be prattling they must not be prattling
Perfect	V-ing perfect
I must not have prattled you must not have prattled he must not have prattled we must not have prattled you must not have prattled they must not have prattled	I must not have been prattling you must not have been prattling he must not have been prattling we must not have been prattling you must not have been prattling they must not have been prattling

Interrogative form

Simple form	V-ing form
must I prattle? must you prattle? must he prattle? must we prattle? must you prattle? must they prattle?	must I be prattling? must you be prattling? must he be prattling? must we be prattling? must you be prattling? must they be prattling?
Perfect	V-ing perfect
must I have prattled? must you have prattled? must he have prattled? must we have prattled? must you have prattled? must they have prattled?	must I have been prattling? must you have been prattling? must he have been prattling? must we have been prattling? must you have been prattling? must they have been prattling?

Interro-negative form

Simple form	V-ing form
must I not prattle? must you not prattle? must he not prattle? must we not prattle? must you not prattle? must they not prattle?	must I not be prattling? must you not be prattling? must he not be prattling? must we not be prattling? must you not be prattling? must they not be prattling?
Perfect	V-ing perfect
must I not have prattled? must you not have prattled? must he not have prattled? must we not have prattled? must you not have prattled? must they not have prattled?	must I not have been prattling? must you not have been prattling? must he not have been prattling? must we not have been prattling? must you not have been prattling? must they not have been prattling?