can downshift
Verbo regular: downshift - downshifted- downshifted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can downshift
you can downshift
he can downshift
we can downshift
you can downshift
they can downshift 	I can be downshifting
you can be downshifting
he can be downshifting
we can be downshifting
you can be downshifting
they can be downshifting	I can have downshifted
you can have downshifted
he can have downshifted
we can have downshifted
you can have downshifted
they can have downshifted	I can have been downshifting
you can have been downshifting
he can have been downshifting
we can have been downshifting
you can have been downshifting
they can have been downshifting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't downshift
you can't downshift
he can't downshift
we can't downshift
you can't downshift
they can't downshift 	I can't be downshifting
you can't be downshifting
he can't be downshifting
we can't be downshifting
you can't be downshifting
they can't be downshifting	I can't have downshifted
you can't have downshifted
he can't have downshifted
we can't have downshifted
you can't have downshifted
they can't have downshifted	I can't have been downshifting
you can't have been downshifting
he can't have been downshifting
we can't have been downshifting
you can't have been downshifting
they can't have been downshifting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I downshift?
can you downshift?
can he downshift?
can we downshift?
can you downshift?
can they downshift? 	can I be downshifting?
can you be downshifting?
can he be downshifting?
can we be downshifting?
can you be downshifting?
can they be downshifting? 	can I have downshifted?
can you have downshifted?
can he have downshifted?
can we have downshifted?
can you have downshifted?
can they have downshifted? 	can I have been downshifting?
can you have been downshifting?
can he have been downshifting?
can we have been downshifting?
can you have been downshifting?
can they have been downshifting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I downshift?
can't you downshift?
can't he downshift?
can't we downshift?
can't you downshift?
can't they downshift? 	can't I be downshifting?
can't you be downshifting?
can't he be downshifting?
can't we be downshifting?
can't you be downshifting?
can't they be downshifting? 	can't I have downshifted?
can't you have downshifted?
can't he have downshifted?
can't we have downshifted?
can't you have downshifted?
can't they have downshifted? 	can't I have been downshifting?
can't you have been downshifting?
can't he have been downshifting?
can't we have been downshifting?
can't you have been downshifting?
can't they have been downshifting?