I must climb you must climb he must climb we must climb you must climb they must climb
Forma con V-ing
I must be climbing you must be climbing he must be climbing we must be climbing you must be climbing they must be climbing
Perfecto
I must have climbed you must have climbed he must have climbed we must have climbed you must have climbed they must have climbed
Perfecto con V-ing
I must have been climbing you must have been climbing he must have been climbing we must have been climbing you must have been climbing they must have been climbing
Negación
Forma simple
I must not climb you must not climb he must not climb we must not climb you must not climb they must not climb
Forma con V-ing
I must not be climbing you must not be climbing he must not be climbing we must not be climbing you must not be climbing they must not be climbing
Perfecto
I must not have climbed you must not have climbed he must not have climbed we must not have climbed you must not have climbed they must not have climbed
Perfecto con V-ing
I must not have been climbing you must not have been climbing he must not have been climbing we must not have been climbing you must not have been climbing they must not have been climbing
Forma interrogativa
Forma simple
must I climb? must you climb? must he climb? must we climb? must you climb? must they climb?
Forma con V-ing
must I be climbing? must you be climbing? must he be climbing? must we be climbing? must you be climbing? must they be climbing?
Perfecto
must I have climbed? must you have climbed? must he have climbed? must we have climbed? must you have climbed? must they have climbed?
Perfecto con V-ing
must I have been climbing? must you have been climbing? must he have been climbing? must we have been climbing? must you have been climbing? must they have been climbing?
Forma interro-negativa
Forma simple
must I not climb? must you not climb? must he not climb? must we not climb? must you not climb? must they not climb?
Forma con V-ing
must I not be climbing? must you not be climbing? must he not be climbing? must we not be climbing? must you not be climbing? must they not be climbing?
Perfecto
must I not have climbed? must you not have climbed? must he not have climbed? must we not have climbed? must you not have climbed? must they not have climbed?
Perfecto con V-ing
must I not have been climbing? must you not have been climbing? must he not have been climbing? must we not have been climbing? must you not have been climbing? must they not have been climbing?