I can ulcerate you can ulcerate he can ulcerate we can ulcerate you can ulcerate they can ulcerate
Forma con V-ing
I can be ulcerating you can be ulcerating he can be ulcerating we can be ulcerating you can be ulcerating they can be ulcerating
Perfecto
I can have ulcerated you can have ulcerated he can have ulcerated we can have ulcerated you can have ulcerated they can have ulcerated
Perfecto con V-ing
I can have been ulcerating you can have been ulcerating he can have been ulcerating we can have been ulcerating you can have been ulcerating they can have been ulcerating
Negación
Forma simple
I cannot ulcerate you cannot ulcerate he cannot ulcerate we cannot ulcerate you cannot ulcerate they cannot ulcerate
Forma con V-ing
I cannot be ulcerating you cannot be ulcerating he cannot be ulcerating we cannot be ulcerating you cannot be ulcerating they cannot be ulcerating
Perfecto
I cannot have ulcerated you cannot have ulcerated he cannot have ulcerated we cannot have ulcerated you cannot have ulcerated they cannot have ulcerated
Perfecto con V-ing
I cannot have been ulcerating you cannot have been ulcerating he cannot have been ulcerating we cannot have been ulcerating you cannot have been ulcerating they cannot have been ulcerating
Forma interrogativa
Forma simple
can I ulcerate? can you ulcerate? can he ulcerate? can we ulcerate? can you ulcerate? can they ulcerate?
Forma con V-ing
can I be ulcerating? can you be ulcerating? can he be ulcerating? can we be ulcerating? can you be ulcerating? can they be ulcerating?
Perfecto
can I have ulcerated? can you have ulcerated? can he have ulcerated? can we have ulcerated? can you have ulcerated? can they have ulcerated?
Perfecto con V-ing
can I have been ulcerating? can you have been ulcerating? can he have been ulcerating? can we have been ulcerating? can you have been ulcerating? can they have been ulcerating?
Forma interro-negativa
Forma simple
can I not ulcerate? can you not ulcerate? can he not ulcerate? can we not ulcerate? can you not ulcerate? can they not ulcerate?
Forma con V-ing
can I not be ulcerating? can you not be ulcerating? can he not be ulcerating? can we not be ulcerating? can you not be ulcerating? can they not be ulcerating?
Perfecto
can I not have ulcerated? can you not have ulcerated? can he not have ulcerated? can we not have ulcerated? can you not have ulcerated? can they not have ulcerated?
Perfecto con V-ing
can I not have been ulcerating? can you not have been ulcerating? can he not have been ulcerating? can we not have been ulcerating? can you not have been ulcerating? can they not have been ulcerating?