Verbo regular: stair-step - stair-steped - stair-steped
Afirmación
Forma simple
I must stair-step you must stair-step she must stair-step we must stair-step you must stair-step they must stair-step
Forma con V-ing
I must be stair-steping you must be stair-steping she must be stair-steping we must be stair-steping you must be stair-steping they must be stair-steping
Perfecto
I must have stair-steped you must have stair-steped she must have stair-steped we must have stair-steped you must have stair-steped they must have stair-steped
Perfecto con V-ing
I must have been stair-steping you must have been stair-steping she must have been stair-steping we must have been stair-steping you must have been stair-steping they must have been stair-steping
Negación
Forma simple
I mustn't stair-step you mustn't stair-step she mustn't stair-step we mustn't stair-step you mustn't stair-step they mustn't stair-step
Forma con V-ing
I mustn't be stair-steping you mustn't be stair-steping she mustn't be stair-steping we mustn't be stair-steping you mustn't be stair-steping they mustn't be stair-steping
Perfecto
I mustn't have stair-steped you mustn't have stair-steped she mustn't have stair-steped we mustn't have stair-steped you mustn't have stair-steped they mustn't have stair-steped
Perfecto con V-ing
I mustn't have been stair-steping you mustn't have been stair-steping she mustn't have been stair-steping we mustn't have been stair-steping you mustn't have been stair-steping they mustn't have been stair-steping
Forma interrogativa
Forma simple
must I stair-step? must you stair-step? must she stair-step? must we stair-step? must you stair-step? must they stair-step?
Forma con V-ing
must I be stair-steping? must you be stair-steping? must she be stair-steping? must we be stair-steping? must you be stair-steping? must they be stair-steping?
Perfecto
must I have stair-steped? must you have stair-steped? must she have stair-steped? must we have stair-steped? must you have stair-steped? must they have stair-steped?
Perfecto con V-ing
must I have been stair-steping? must you have been stair-steping? must she have been stair-steping? must we have been stair-steping? must you have been stair-steping? must they have been stair-steping?
Forma interro-negativa
Forma simple
mustn't I stair-step? mustn't you stair-step? mustn't she stair-step? mustn't we stair-step? mustn't you stair-step? mustn't they stair-step?
Forma con V-ing
mustn't I be stair-steping? mustn't you be stair-steping? mustn't she be stair-steping? mustn't we be stair-steping? mustn't you be stair-steping? mustn't they be stair-steping?
Perfecto
mustn't I have stair-steped? mustn't you have stair-steped? mustn't she have stair-steped? mustn't we have stair-steped? mustn't you have stair-steped? mustn't they have stair-steped?
Perfecto con V-ing
mustn't I have been stair-steping? mustn't you have been stair-steping? mustn't she have been stair-steping? mustn't we have been stair-steping? mustn't you have been stair-steping? mustn't they have been stair-steping?