Conjugação do verbo inglês
CAN HOWL

Verbo regular: howl - howled - howled

Afirmação

Forma simple	Forma com V-ing
I can howl you can howl she can howl we can howl you can howl they can howl	I can be howling you can be howling she can be howling we can be howling you can be howling they can be howling
Perfeito	Perfeito com V-ing
I can have howled you can have howled she can have howled we can have howled you can have howled they can have howled	I can have been howling you can have been howling she can have been howling we can have been howling you can have been howling they can have been howling

Negação

Forma simple	Forma com V-ing
I cannot howl you cannot howl she cannot howl we cannot howl you cannot howl they cannot howl	I cannot be howling you cannot be howling she cannot be howling we cannot be howling you cannot be howling they cannot be howling
Perfeito	Perfeito com V-ing
I cannot have howled you cannot have howled she cannot have howled we cannot have howled you cannot have howled they cannot have howled	I cannot have been howling you cannot have been howling she cannot have been howling we cannot have been howling you cannot have been howling they cannot have been howling

Forma interrogativa

Forma simple	Forma com V-ing
can I howl? can you howl? can she howl? can we howl? can you howl? can they howl?	can I be howling? can you be howling? can she be howling? can we be howling? can you be howling? can they be howling?
Perfeito	Perfeito com V-ing
can I have howled? can you have howled? can she have howled? can we have howled? can you have howled? can they have howled?	can I have been howling? can you have been howling? can she have been howling? can we have been howling? can you have been howling? can they have been howling?

Forma interro-Negação

Forma simple	Forma com V-ing
can I not howl? can you not howl? can she not howl? can we not howl? can you not howl? can they not howl?	can I not be howling? can you not be howling? can she not be howling? can we not be howling? can you not be howling? can they not be howling?
Perfeito	Perfeito com V-ing
can I not have howled? can you not have howled? can she not have howled? can we not have howled? can you not have howled? can they not have howled?	can I not have been howling? can you not have been howling? can she not have been howling? can we not have been howling? can you not have been howling? can they not have been howling?