could tincture
Verbo regular: tincture - tinctured- tinctured

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tincture
you could tincture
he could tincture
we could tincture
you could tincture
they could tincture 	I could be tincturing
you could be tincturing
he could be tincturing
we could be tincturing
you could be tincturing
they could be tincturing	I could have tinctured
you could have tinctured
he could have tinctured
we could have tinctured
you could have tinctured
they could have tinctured	I could have been tincturing
you could have been tincturing
he could have been tincturing
we could have been tincturing
you could have been tincturing
they could have been tincturing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not tincture
you could not tincture
he could not tincture
we could not tincture
you could not tincture
they could not tincture 	I could not be tincturing
you could not be tincturing
he could not be tincturing
we could not be tincturing
you could not be tincturing
they could not be tincturing	I could not have tinctured
you could not have tinctured
he could not have tinctured
we could not have tinctured
you could not have tinctured
they could not have tinctured	I could not have been tincturing
you could not have been tincturing
he could not have been tincturing
we could not have been tincturing
you could not have been tincturing
they could not have been tincturing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tincture?
could you tincture?
could he tincture?
could we tincture?
could you tincture?
could they tincture? 	could I be tincturing?
could you be tincturing?
could he be tincturing?
could we be tincturing?
could you be tincturing?
could they be tincturing? 	could I have tinctured?
could you have tinctured?
could he have tinctured?
could we have tinctured?
could you have tinctured?
could they have tinctured? 	could I have been tincturing?
could you have been tincturing?
could he have been tincturing?
could we have been tincturing?
could you have been tincturing?
could they have been tincturing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not tincture?
could you not tincture?
could he not tincture?
could we not tincture?
could you not tincture?
could they not tincture? 	could I not be tincturing?
could you not be tincturing?
could he not be tincturing?
could we not be tincturing?
could you not be tincturing?
could they not be tincturing? 	could I not have tinctured?
could you not have tinctured?
could he not have tinctured?
could we not have tinctured?
could you not have tinctured?
could they not have tinctured? 	could I not have been tincturing?
could you not have been tincturing?
could he not have been tincturing?
could we not have been tincturing?
could you not have been tincturing?
could they not have been tincturing?