I must compose you must compose she must compose we must compose you must compose they must compose
Forma con V-ing
I must be composing you must be composing she must be composing we must be composing you must be composing they must be composing
Perfecto
I must have composed you must have composed she must have composed we must have composed you must have composed they must have composed
Perfecto con V-ing
I must have been composing you must have been composing she must have been composing we must have been composing you must have been composing they must have been composing
Negación
Forma simple
I mustn't compose you mustn't compose she mustn't compose we mustn't compose you mustn't compose they mustn't compose
Forma con V-ing
I mustn't be composing you mustn't be composing she mustn't be composing we mustn't be composing you mustn't be composing they mustn't be composing
Perfecto
I mustn't have composed you mustn't have composed she mustn't have composed we mustn't have composed you mustn't have composed they mustn't have composed
Perfecto con V-ing
I mustn't have been composing you mustn't have been composing she mustn't have been composing we mustn't have been composing you mustn't have been composing they mustn't have been composing
Forma interrogativa
Forma simple
must I compose? must you compose? must she compose? must we compose? must you compose? must they compose?
Forma con V-ing
must I be composing? must you be composing? must she be composing? must we be composing? must you be composing? must they be composing?
Perfecto
must I have composed? must you have composed? must she have composed? must we have composed? must you have composed? must they have composed?
Perfecto con V-ing
must I have been composing? must you have been composing? must she have been composing? must we have been composing? must you have been composing? must they have been composing?
Forma interro-negativa
Forma simple
mustn't I compose? mustn't you compose? mustn't she compose? mustn't we compose? mustn't you compose? mustn't they compose?
Forma con V-ing
mustn't I be composing? mustn't you be composing? mustn't she be composing? mustn't we be composing? mustn't you be composing? mustn't they be composing?
Perfecto
mustn't I have composed? mustn't you have composed? mustn't she have composed? mustn't we have composed? mustn't you have composed? mustn't they have composed?
Perfecto con V-ing
mustn't I have been composing? mustn't you have been composing? mustn't she have been composing? mustn't we have been composing? mustn't you have been composing? mustn't they have been composing?