Verbo irregular: learn - learned, learnt - learned, learnt
Afirmação
Forma simple
I must learn you must learn she must learn we must learn you must learn they must learn
Forma com V-ing
I must be learning you must be learning she must be learning we must be learning you must be learning they must be learning
Perfeito
I must have learned, learnt you must have learned, learnt she must have learned, learnt we must have learned, learnt you must have learned, learnt they must have learned, learnt
Perfeito com V-ing
I must have been learning you must have been learning she must have been learning we must have been learning you must have been learning they must have been learning
Negação
Forma simple
I mustn't learn you mustn't learn she mustn't learn we mustn't learn you mustn't learn they mustn't learn
Forma com V-ing
I mustn't be learning you mustn't be learning she mustn't be learning we mustn't be learning you mustn't be learning they mustn't be learning
Perfeito
I mustn't have learned, learnt you mustn't have learned, learnt she mustn't have learned, learnt we mustn't have learned, learnt you mustn't have learned, learnt they mustn't have learned, learnt
Perfeito com V-ing
I mustn't have been learning you mustn't have been learning she mustn't have been learning we mustn't have been learning you mustn't have been learning they mustn't have been learning
Forma interrogativa
Forma simple
must I learn? must you learn? must she learn? must we learn? must you learn? must they learn?
Forma com V-ing
must I be learning? must you be learning? must she be learning? must we be learning? must you be learning? must they be learning?
Perfeito
must I have learned, learnt? must you have learned, learnt? must she have learned, learnt? must we have learned, learnt? must you have learned, learnt? must they have learned, learnt?
Perfeito com V-ing
must I have been learning? must you have been learning? must she have been learning? must we have been learning? must you have been learning? must they have been learning?
Forma interro-Negação
Forma simple
mustn't I learn? mustn't you learn? mustn't she learn? mustn't we learn? mustn't you learn? mustn't they learn?
Forma com V-ing
mustn't I be learning? mustn't you be learning? mustn't she be learning? mustn't we be learning? mustn't you be learning? mustn't they be learning?
Perfeito
mustn't I have learned, learnt? mustn't you have learned, learnt? mustn't she have learned, learnt? mustn't we have learned, learnt? mustn't you have learned, learnt? mustn't they have learned, learnt?
Perfeito com V-ing
mustn't I have been learning? mustn't you have been learning? mustn't she have been learning? mustn't we have been learning? mustn't you have been learning? mustn't they have been learning?