Verbo irregular: understand - understood - understood
Afirmación
Forma simple
I can understand you can understand he can understand we can understand you can understand they can understand
Forma con V-ing
I can be understanding you can be understanding he can be understanding we can be understanding you can be understanding they can be understanding
Perfecto
I can have understood you can have understood he can have understood we can have understood you can have understood they can have understood
Perfecto con V-ing
I can have been understanding you can have been understanding he can have been understanding we can have been understanding you can have been understanding they can have been understanding
Negación
Forma simple
I can't understand you can't understand he can't understand we can't understand you can't understand they can't understand
Forma con V-ing
I can't be understanding you can't be understanding he can't be understanding we can't be understanding you can't be understanding they can't be understanding
Perfecto
I can't have understood you can't have understood he can't have understood we can't have understood you can't have understood they can't have understood
Perfecto con V-ing
I can't have been understanding you can't have been understanding he can't have been understanding we can't have been understanding you can't have been understanding they can't have been understanding
Forma interrogativa
Forma simple
can I understand? can you understand? can he understand? can we understand? can you understand? can they understand?
Forma con V-ing
can I be understanding? can you be understanding? can he be understanding? can we be understanding? can you be understanding? can they be understanding?
Perfecto
can I have understood? can you have understood? can he have understood? can we have understood? can you have understood? can they have understood?
Perfecto con V-ing
can I have been understanding? can you have been understanding? can he have been understanding? can we have been understanding? can you have been understanding? can they have been understanding?
Forma interro-negativa
Forma simple
can't I understand? can't you understand? can't he understand? can't we understand? can't you understand? can't they understand?
Forma con V-ing
can't I be understanding? can't you be understanding? can't he be understanding? can't we be understanding? can't you be understanding? can't they be understanding?
Perfecto
can't I have understood? can't you have understood? can't he have understood? can't we have understood? can't you have understood? can't they have understood?
Perfecto con V-ing
can't I have been understanding? can't you have been understanding? can't he have been understanding? can't we have been understanding? can't you have been understanding? can't they have been understanding?