can tether
Verbo regular: tether - tethered- tethered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can tether
you can tether
he can tether
we can tether
you can tether
they can tether 	I can be tethering
you can be tethering
he can be tethering
we can be tethering
you can be tethering
they can be tethering	I can have tethered
you can have tethered
he can have tethered
we can have tethered
you can have tethered
they can have tethered	I can have been tethering
you can have been tethering
he can have been tethering
we can have been tethering
you can have been tethering
they can have been tethering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot tether
you cannot tether
he cannot tether
we cannot tether
you cannot tether
they cannot tether 	I cannot be tethering
you cannot be tethering
he cannot be tethering
we cannot be tethering
you cannot be tethering
they cannot be tethering	I cannot have tethered
you cannot have tethered
he cannot have tethered
we cannot have tethered
you cannot have tethered
they cannot have tethered	I cannot have been tethering
you cannot have been tethering
he cannot have been tethering
we cannot have been tethering
you cannot have been tethering
they cannot have been tethering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I tether?
can you tether?
can he tether?
can we tether?
can you tether?
can they tether? 	can I be tethering?
can you be tethering?
can he be tethering?
can we be tethering?
can you be tethering?
can they be tethering? 	can I have tethered?
can you have tethered?
can he have tethered?
can we have tethered?
can you have tethered?
can they have tethered? 	can I have been tethering?
can you have been tethering?
can he have been tethering?
can we have been tethering?
can you have been tethering?
can they have been tethering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not tether?
can you not tether?
can he not tether?
can we not tether?
can you not tether?
can they not tether? 	can I not be tethering?
can you not be tethering?
can he not be tethering?
can we not be tethering?
can you not be tethering?
can they not be tethering? 	can I not have tethered?
can you not have tethered?
can he not have tethered?
can we not have tethered?
can you not have tethered?
can they not have tethered? 	can I not have been tethering?
can you not have been tethering?
can he not have been tethering?
can we not have been tethering?
can you not have been tethering?
can they not have been tethering?