English verb conjugation
MUST SPIRAL

Regular verb: spiral - spiralled - spiralled

Affirmation

Simple form	V-ing form
I must spiral you must spiral he must spiral we must spiral you must spiral they must spiral	I must be spiralling you must be spiralling he must be spiralling we must be spiralling you must be spiralling they must be spiralling
Perfect	V-ing perfect
I must have spiralled you must have spiralled he must have spiralled we must have spiralled you must have spiralled they must have spiralled	I must have been spiralling you must have been spiralling he must have been spiralling we must have been spiralling you must have been spiralling they must have been spiralling

Negation

Simple form	V-ing form
I mustn't spiral you mustn't spiral he mustn't spiral we mustn't spiral you mustn't spiral they mustn't spiral	I mustn't be spiralling you mustn't be spiralling he mustn't be spiralling we mustn't be spiralling you mustn't be spiralling they mustn't be spiralling
Perfect	V-ing perfect
I mustn't have spiralled you mustn't have spiralled he mustn't have spiralled we mustn't have spiralled you mustn't have spiralled they mustn't have spiralled	I mustn't have been spiralling you mustn't have been spiralling he mustn't have been spiralling we mustn't have been spiralling you mustn't have been spiralling they mustn't have been spiralling

Interrogative form

Simple form	V-ing form
must I spiral? must you spiral? must he spiral? must we spiral? must you spiral? must they spiral?	must I be spiralling? must you be spiralling? must he be spiralling? must we be spiralling? must you be spiralling? must they be spiralling?
Perfect	V-ing perfect
must I have spiralled? must you have spiralled? must he have spiralled? must we have spiralled? must you have spiralled? must they have spiralled?	must I have been spiralling? must you have been spiralling? must he have been spiralling? must we have been spiralling? must you have been spiralling? must they have been spiralling?

Interro-negative form

Simple form	V-ing form
mustn't I spiral? mustn't you spiral? mustn't he spiral? mustn't we spiral? mustn't you spiral? mustn't they spiral?	mustn't I be spiralling? mustn't you be spiralling? mustn't he be spiralling? mustn't we be spiralling? mustn't you be spiralling? mustn't they be spiralling?
Perfect	V-ing perfect
mustn't I have spiralled? mustn't you have spiralled? mustn't he have spiralled? mustn't we have spiralled? mustn't you have spiralled? mustn't they have spiralled?	mustn't I have been spiralling? mustn't you have been spiralling? mustn't he have been spiralling? mustn't we have been spiralling? mustn't you have been spiralling? mustn't they have been spiralling?