I must scrimp you must scrimp she must scrimp we must scrimp you must scrimp they must scrimp
Forma con V-ing
I must be scrimping you must be scrimping she must be scrimping we must be scrimping you must be scrimping they must be scrimping
Perfecto
I must have scrimped you must have scrimped she must have scrimped we must have scrimped you must have scrimped they must have scrimped
Perfecto con V-ing
I must have been scrimping you must have been scrimping she must have been scrimping we must have been scrimping you must have been scrimping they must have been scrimping
Negación
Forma simple
I must not scrimp you must not scrimp she must not scrimp we must not scrimp you must not scrimp they must not scrimp
Forma con V-ing
I must not be scrimping you must not be scrimping she must not be scrimping we must not be scrimping you must not be scrimping they must not be scrimping
Perfecto
I must not have scrimped you must not have scrimped she must not have scrimped we must not have scrimped you must not have scrimped they must not have scrimped
Perfecto con V-ing
I must not have been scrimping you must not have been scrimping she must not have been scrimping we must not have been scrimping you must not have been scrimping they must not have been scrimping
Forma interrogativa
Forma simple
must I scrimp? must you scrimp? must she scrimp? must we scrimp? must you scrimp? must they scrimp?
Forma con V-ing
must I be scrimping? must you be scrimping? must she be scrimping? must we be scrimping? must you be scrimping? must they be scrimping?
Perfecto
must I have scrimped? must you have scrimped? must she have scrimped? must we have scrimped? must you have scrimped? must they have scrimped?
Perfecto con V-ing
must I have been scrimping? must you have been scrimping? must she have been scrimping? must we have been scrimping? must you have been scrimping? must they have been scrimping?
Forma interro-negativa
Forma simple
must I not scrimp? must you not scrimp? must she not scrimp? must we not scrimp? must you not scrimp? must they not scrimp?
Forma con V-ing
must I not be scrimping? must you not be scrimping? must she not be scrimping? must we not be scrimping? must you not be scrimping? must they not be scrimping?
Perfecto
must I not have scrimped? must you not have scrimped? must she not have scrimped? must we not have scrimped? must you not have scrimped? must they not have scrimped?
Perfecto con V-ing
must I not have been scrimping? must you not have been scrimping? must she not have been scrimping? must we not have been scrimping? must you not have been scrimping? must they not have been scrimping?