Conjugação do verbo inglês
CAN UNDERSTAND

Verbo irregular: understand - understood - understood

Afirmação

Forma simple	Forma com V-ing
I can understand you can understand he can understand we can understand you can understand they can understand	I can be understanding you can be understanding he can be understanding we can be understanding you can be understanding they can be understanding
Perfeito	Perfeito com V-ing
I can have understood you can have understood he can have understood we can have understood you can have understood they can have understood	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

Negação

Forma simple	Forma com V-ing
I can't understand you can't understand he can't understand we can't understand you can't understand they can't understand	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
Perfeito	Perfeito com V-ing
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	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	Forma com V-ing
can I understand? can you understand? can he understand? can we understand? can you understand? can they understand?	can I be understanding? can you be understanding? can he be understanding? can we be understanding? can you be understanding? can they be understanding?
Perfeito	Perfeito com V-ing
can I have understood? can you have understood? can he have understood? can we have understood? can you have understood? can they have understood?	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-Negação

Forma simple	Forma com V-ing
can't I understand? can't you understand? can't he understand? can't we understand? can't you understand? can't they understand?	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?
Perfeito	Perfeito com V-ing
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?	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?