I must aspire you must aspire he must aspire we must aspire you must aspire they must aspire
V-ing form
I must be aspiring you must be aspiring he must be aspiring we must be aspiring you must be aspiring they must be aspiring
Perfect
I must have aspired you must have aspired he must have aspired we must have aspired you must have aspired they must have aspired
V-ing perfect
I must have been aspiring you must have been aspiring he must have been aspiring we must have been aspiring you must have been aspiring they must have been aspiring
Negation
Simple form
I mustn't aspire you mustn't aspire he mustn't aspire we mustn't aspire you mustn't aspire they mustn't aspire
V-ing form
I mustn't be aspiring you mustn't be aspiring he mustn't be aspiring we mustn't be aspiring you mustn't be aspiring they mustn't be aspiring
Perfect
I mustn't have aspired you mustn't have aspired he mustn't have aspired we mustn't have aspired you mustn't have aspired they mustn't have aspired
V-ing perfect
I mustn't have been aspiring you mustn't have been aspiring he mustn't have been aspiring we mustn't have been aspiring you mustn't have been aspiring they mustn't have been aspiring
Interrogative form
Simple form
must I aspire? must you aspire? must he aspire? must we aspire? must you aspire? must they aspire?
V-ing form
must I be aspiring? must you be aspiring? must he be aspiring? must we be aspiring? must you be aspiring? must they be aspiring?
Perfect
must I have aspired? must you have aspired? must he have aspired? must we have aspired? must you have aspired? must they have aspired?
V-ing perfect
must I have been aspiring? must you have been aspiring? must he have been aspiring? must we have been aspiring? must you have been aspiring? must they have been aspiring?
Interro-negative form
Simple form
mustn't I aspire? mustn't you aspire? mustn't he aspire? mustn't we aspire? mustn't you aspire? mustn't they aspire?
V-ing form
mustn't I be aspiring? mustn't you be aspiring? mustn't he be aspiring? mustn't we be aspiring? mustn't you be aspiring? mustn't they be aspiring?
Perfect
mustn't I have aspired? mustn't you have aspired? mustn't he have aspired? mustn't we have aspired? mustn't you have aspired? mustn't they have aspired?
V-ing perfect
mustn't I have been aspiring? mustn't you have been aspiring? mustn't he have been aspiring? mustn't we have been aspiring? mustn't you have been aspiring? mustn't they have been aspiring?