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