I can boil you can boil he can boil we can boil you can boil they can boil
Forma con V-ing
I can be boiling you can be boiling he can be boiling we can be boiling you can be boiling they can be boiling
Perfecto
I can have boiled you can have boiled he can have boiled we can have boiled you can have boiled they can have boiled
Perfecto con V-ing
I can have been boiling you can have been boiling he can have been boiling we can have been boiling you can have been boiling they can have been boiling
Negación
Forma simple
I can't boil you can't boil he can't boil we can't boil you can't boil they can't boil
Forma con V-ing
I can't be boiling you can't be boiling he can't be boiling we can't be boiling you can't be boiling they can't be boiling
Perfecto
I can't have boiled you can't have boiled he can't have boiled we can't have boiled you can't have boiled they can't have boiled
Perfecto con V-ing
I can't have been boiling you can't have been boiling he can't have been boiling we can't have been boiling you can't have been boiling they can't have been boiling
Forma interrogativa
Forma simple
can I boil? can you boil? can he boil? can we boil? can you boil? can they boil?
Forma con V-ing
can I be boiling? can you be boiling? can he be boiling? can we be boiling? can you be boiling? can they be boiling?
Perfecto
can I have boiled? can you have boiled? can he have boiled? can we have boiled? can you have boiled? can they have boiled?
Perfecto con V-ing
can I have been boiling? can you have been boiling? can he have been boiling? can we have been boiling? can you have been boiling? can they have been boiling?
Forma interro-negativa
Forma simple
can't I boil? can't you boil? can't he boil? can't we boil? can't you boil? can't they boil?
Forma con V-ing
can't I be boiling? can't you be boiling? can't he be boiling? can't we be boiling? can't you be boiling? can't they be boiling?
Perfecto
can't I have boiled? can't you have boiled? can't he have boiled? can't we have boiled? can't you have boiled? can't they have boiled?
Perfecto con V-ing
can't I have been boiling? can't you have been boiling? can't he have been boiling? can't we have been boiling? can't you have been boiling? can't they have been boiling?