I must lessen you must lessen she must lessen we must lessen you must lessen they must lessen
Forma com V-ing
I must be lessening you must be lessening she must be lessening we must be lessening you must be lessening they must be lessening
Perfeito
I must have lessened you must have lessened she must have lessened we must have lessened you must have lessened they must have lessened
Perfeito com V-ing
I must have been lessening you must have been lessening she must have been lessening we must have been lessening you must have been lessening they must have been lessening
Negação
Forma simple
I must not lessen you must not lessen she must not lessen we must not lessen you must not lessen they must not lessen
Forma com V-ing
I must not be lessening you must not be lessening she must not be lessening we must not be lessening you must not be lessening they must not be lessening
Perfeito
I must not have lessened you must not have lessened she must not have lessened we must not have lessened you must not have lessened they must not have lessened
Perfeito com V-ing
I must not have been lessening you must not have been lessening she must not have been lessening we must not have been lessening you must not have been lessening they must not have been lessening
Forma interrogativa
Forma simple
must I lessen? must you lessen? must she lessen? must we lessen? must you lessen? must they lessen?
Forma com V-ing
must I be lessening? must you be lessening? must she be lessening? must we be lessening? must you be lessening? must they be lessening?
Perfeito
must I have lessened? must you have lessened? must she have lessened? must we have lessened? must you have lessened? must they have lessened?
Perfeito com V-ing
must I have been lessening? must you have been lessening? must she have been lessening? must we have been lessening? must you have been lessening? must they have been lessening?
Forma interro-Negação
Forma simple
must I not lessen? must you not lessen? must she not lessen? must we not lessen? must you not lessen? must they not lessen?
Forma com V-ing
must I not be lessening? must you not be lessening? must she not be lessening? must we not be lessening? must you not be lessening? must they not be lessening?
Perfeito
must I not have lessened? must you not have lessened? must she not have lessened? must we not have lessened? must you not have lessened? must they not have lessened?
Perfeito com V-ing
must I not have been lessening? must you not have been lessening? must she not have been lessening? must we not have been lessening? must you not have been lessening? must they not have been lessening?