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 must not spiral you must not spiral he must not spiral we must not spiral you must not spiral they must not spiral	I must not be spiralling you must not be spiralling he must not be spiralling we must not be spiralling you must not be spiralling they must not be spiralling
Perfect	V-ing perfect
I must not have spiralled you must not have spiralled he must not have spiralled we must not have spiralled you must not have spiralled they must not have spiralled	I must not have been spiralling you must not have been spiralling he must not have been spiralling we must not have been spiralling you must not have been spiralling they must not 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
must I not spiral? must you not spiral? must he not spiral? must we not spiral? must you not spiral? must they not spiral?	must I not be spiralling? must you not be spiralling? must he not be spiralling? must we not be spiralling? must you not be spiralling? must they not be spiralling?
Perfect	V-ing perfect
must I not have spiralled? must you not have spiralled? must he not have spiralled? must we not have spiralled? must you not have spiralled? must they not have spiralled?	must I not have been spiralling? must you not have been spiralling? must he not have been spiralling? must we not have been spiralling? must you not have been spiralling? must they not have been spiralling?