can froth
Verbo regular: froth - frothed- frothed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can froth
you can froth
he can froth
we can froth
you can froth
they can froth 	I can be frothing
you can be frothing
he can be frothing
we can be frothing
you can be frothing
they can be frothing	I can have frothed
you can have frothed
he can have frothed
we can have frothed
you can have frothed
they can have frothed	I can have been frothing
you can have been frothing
he can have been frothing
we can have been frothing
you can have been frothing
they can have been frothing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot froth
you cannot froth
he cannot froth
we cannot froth
you cannot froth
they cannot froth 	I cannot be frothing
you cannot be frothing
he cannot be frothing
we cannot be frothing
you cannot be frothing
they cannot be frothing	I cannot have frothed
you cannot have frothed
he cannot have frothed
we cannot have frothed
you cannot have frothed
they cannot have frothed	I cannot have been frothing
you cannot have been frothing
he cannot have been frothing
we cannot have been frothing
you cannot have been frothing
they cannot have been frothing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I froth?
can you froth?
can he froth?
can we froth?
can you froth?
can they froth? 	can I be frothing?
can you be frothing?
can he be frothing?
can we be frothing?
can you be frothing?
can they be frothing? 	can I have frothed?
can you have frothed?
can he have frothed?
can we have frothed?
can you have frothed?
can they have frothed? 	can I have been frothing?
can you have been frothing?
can he have been frothing?
can we have been frothing?
can you have been frothing?
can they have been frothing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not froth?
can you not froth?
can he not froth?
can we not froth?
can you not froth?
can they not froth? 	can I not be frothing?
can you not be frothing?
can he not be frothing?
can we not be frothing?
can you not be frothing?
can they not be frothing? 	can I not have frothed?
can you not have frothed?
can he not have frothed?
can we not have frothed?
can you not have frothed?
can they not have frothed? 	can I not have been frothing?
can you not have been frothing?
can he not have been frothing?
can we not have been frothing?
can you not have been frothing?
can they not have been frothing?