I can aspire you can aspire he can aspire we can aspire you can aspire they can aspire
V-ing form
I can be aspiring you can be aspiring he can be aspiring we can be aspiring you can be aspiring they can be aspiring
Perfect
I can have aspired you can have aspired he can have aspired we can have aspired you can have aspired they can have aspired
V-ing perfect
I can have been aspiring you can have been aspiring he can have been aspiring we can have been aspiring you can have been aspiring they can have been aspiring
Negation
Simple form
I cannot aspire you cannot aspire he cannot aspire we cannot aspire you cannot aspire they cannot aspire
V-ing form
I cannot be aspiring you cannot be aspiring he cannot be aspiring we cannot be aspiring you cannot be aspiring they cannot be aspiring
Perfect
I cannot have aspired you cannot have aspired he cannot have aspired we cannot have aspired you cannot have aspired they cannot have aspired
V-ing perfect
I cannot have been aspiring you cannot have been aspiring he cannot have been aspiring we cannot have been aspiring you cannot have been aspiring they cannot have been aspiring
Interrogative form
Simple form
can I aspire? can you aspire? can he aspire? can we aspire? can you aspire? can they aspire?
V-ing form
can I be aspiring? can you be aspiring? can he be aspiring? can we be aspiring? can you be aspiring? can they be aspiring?
Perfect
can I have aspired? can you have aspired? can he have aspired? can we have aspired? can you have aspired? can they have aspired?
V-ing perfect
can I have been aspiring? can you have been aspiring? can he have been aspiring? can we have been aspiring? can you have been aspiring? can they have been aspiring?
Interro-negative form
Simple form
can I not aspire? can you not aspire? can he not aspire? can we not aspire? can you not aspire? can they not aspire?
V-ing form
can I not be aspiring? can you not be aspiring? can he not be aspiring? can we not be aspiring? can you not be aspiring? can they not be aspiring?
Perfect
can I not have aspired? can you not have aspired? can he not have aspired? can we not have aspired? can you not have aspired? can they not have aspired?
V-ing perfect
can I not have been aspiring? can you not have been aspiring? can he not have been aspiring? can we not have been aspiring? can you not have been aspiring? can they not have been aspiring?