could halt
Verbo regular: halt - halted- halted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could halt
you could halt
he could halt
we could halt
you could halt
they could halt 	I could be halting
you could be halting
he could be halting
we could be halting
you could be halting
they could be halting	I could have halted
you could have halted
he could have halted
we could have halted
you could have halted
they could have halted	I could have been halting
you could have been halting
he could have been halting
we could have been halting
you could have been halting
they could have been halting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't halt
you couldn't halt
he couldn't halt
we couldn't halt
you couldn't halt
they couldn't halt 	I couldn't be halting
you couldn't be halting
he couldn't be halting
we couldn't be halting
you couldn't be halting
they couldn't be halting	I couldn't have halted
you couldn't have halted
he couldn't have halted
we couldn't have halted
you couldn't have halted
they couldn't have halted	I couldn't have been halting
you couldn't have been halting
he couldn't have been halting
we couldn't have been halting
you couldn't have been halting
they couldn't have been halting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I halt?
could you halt?
could he halt?
could we halt?
could you halt?
could they halt? 	could I be halting?
could you be halting?
could he be halting?
could we be halting?
could you be halting?
could they be halting? 	could I have halted?
could you have halted?
could he have halted?
could we have halted?
could you have halted?
could they have halted? 	could I have been halting?
could you have been halting?
could he have been halting?
could we have been halting?
could you have been halting?
could they have been halting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I halt?
couldn't you halt?
couldn't he halt?
couldn't we halt?
couldn't you halt?
couldn't they halt? 	couldn't I be halting?
couldn't you be halting?
couldn't he be halting?
couldn't we be halting?
couldn't you be halting?
couldn't they be halting? 	couldn't I have halted?
couldn't you have halted?
couldn't he have halted?
couldn't we have halted?
couldn't you have halted?
couldn't they have halted? 	couldn't I have been halting?
couldn't you have been halting?
couldn't he have been halting?
couldn't we have been halting?
couldn't you have been halting?
couldn't they have been halting?