I must shovel you must shovel she must shovel we must shovel you must shovel they must shovel
Forma con V-ing
I must be shovelling you must be shovelling she must be shovelling we must be shovelling you must be shovelling they must be shovelling
Perfecto
I must have shovelled you must have shovelled she must have shovelled we must have shovelled you must have shovelled they must have shovelled
Perfecto con V-ing
I must have been shovelling you must have been shovelling she must have been shovelling we must have been shovelling you must have been shovelling they must have been shovelling
Negación
Forma simple
I must not shovel you must not shovel she must not shovel we must not shovel you must not shovel they must not shovel
Forma con V-ing
I must not be shovelling you must not be shovelling she must not be shovelling we must not be shovelling you must not be shovelling they must not be shovelling
Perfecto
I must not have shovelled you must not have shovelled she must not have shovelled we must not have shovelled you must not have shovelled they must not have shovelled
Perfecto con V-ing
I must not have been shovelling you must not have been shovelling she must not have been shovelling we must not have been shovelling you must not have been shovelling they must not have been shovelling
Forma interrogativa
Forma simple
must I shovel? must you shovel? must she shovel? must we shovel? must you shovel? must they shovel?
Forma con V-ing
must I be shovelling? must you be shovelling? must she be shovelling? must we be shovelling? must you be shovelling? must they be shovelling?
Perfecto
must I have shovelled? must you have shovelled? must she have shovelled? must we have shovelled? must you have shovelled? must they have shovelled?
Perfecto con V-ing
must I have been shovelling? must you have been shovelling? must she have been shovelling? must we have been shovelling? must you have been shovelling? must they have been shovelling?
Forma interro-negativa
Forma simple
must I not shovel? must you not shovel? must she not shovel? must we not shovel? must you not shovel? must they not shovel?
Forma con V-ing
must I not be shovelling? must you not be shovelling? must she not be shovelling? must we not be shovelling? must you not be shovelling? must they not be shovelling?
Perfecto
must I not have shovelled? must you not have shovelled? must she not have shovelled? must we not have shovelled? must you not have shovelled? must they not have shovelled?
Perfecto con V-ing
must I not have been shovelling? must you not have been shovelling? must she not have been shovelling? must we not have been shovelling? must you not have been shovelling? must they not have been shovelling?