I must tumble you must tumble she must tumble we must tumble you must tumble they must tumble
Forma com V-ing
I must be tumbling you must be tumbling she must be tumbling we must be tumbling you must be tumbling they must be tumbling
Perfeito
I must have tumbled you must have tumbled she must have tumbled we must have tumbled you must have tumbled they must have tumbled
Perfeito com V-ing
I must have been tumbling you must have been tumbling she must have been tumbling we must have been tumbling you must have been tumbling they must have been tumbling
Negação
Forma simple
I must not tumble you must not tumble she must not tumble we must not tumble you must not tumble they must not tumble
Forma com V-ing
I must not be tumbling you must not be tumbling she must not be tumbling we must not be tumbling you must not be tumbling they must not be tumbling
Perfeito
I must not have tumbled you must not have tumbled she must not have tumbled we must not have tumbled you must not have tumbled they must not have tumbled
Perfeito com V-ing
I must not have been tumbling you must not have been tumbling she must not have been tumbling we must not have been tumbling you must not have been tumbling they must not have been tumbling
Forma interrogativa
Forma simple
must I tumble? must you tumble? must she tumble? must we tumble? must you tumble? must they tumble?
Forma com V-ing
must I be tumbling? must you be tumbling? must she be tumbling? must we be tumbling? must you be tumbling? must they be tumbling?
Perfeito
must I have tumbled? must you have tumbled? must she have tumbled? must we have tumbled? must you have tumbled? must they have tumbled?
Perfeito com V-ing
must I have been tumbling? must you have been tumbling? must she have been tumbling? must we have been tumbling? must you have been tumbling? must they have been tumbling?
Forma interro-Negação
Forma simple
must I not tumble? must you not tumble? must she not tumble? must we not tumble? must you not tumble? must they not tumble?
Forma com V-ing
must I not be tumbling? must you not be tumbling? must she not be tumbling? must we not be tumbling? must you not be tumbling? must they not be tumbling?
Perfeito
must I not have tumbled? must you not have tumbled? must she not have tumbled? must we not have tumbled? must you not have tumbled? must they not have tumbled?
Perfeito com V-ing
must I not have been tumbling? must you not have been tumbling? must she not have been tumbling? must we not have been tumbling? must you not have been tumbling? must they not have been tumbling?