could stitch
Verbo regular: stitch - stitched- stitched

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could stitch
you could stitch
he could stitch
we could stitch
you could stitch
they could stitch 	I could be stitching
you could be stitching
he could be stitching
we could be stitching
you could be stitching
they could be stitching	I could have stitched
you could have stitched
he could have stitched
we could have stitched
you could have stitched
they could have stitched	I could have been stitching
you could have been stitching
he could have been stitching
we could have been stitching
you could have been stitching
they could have been stitching	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't stitch
you couldn't stitch
he couldn't stitch
we couldn't stitch
you couldn't stitch
they couldn't stitch 	I couldn't be stitching
you couldn't be stitching
he couldn't be stitching
we couldn't be stitching
you couldn't be stitching
they couldn't be stitching	I couldn't have stitched
you couldn't have stitched
he couldn't have stitched
we couldn't have stitched
you couldn't have stitched
they couldn't have stitched	I couldn't have been stitching
you couldn't have been stitching
he couldn't have been stitching
we couldn't have been stitching
you couldn't have been stitching
they couldn't have been stitching	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I stitch?
could you stitch?
could he stitch?
could we stitch?
could you stitch?
could they stitch? 	could I be stitching?
could you be stitching?
could he be stitching?
could we be stitching?
could you be stitching?
could they be stitching? 	could I have stitched?
could you have stitched?
could he have stitched?
could we have stitched?
could you have stitched?
could they have stitched? 	could I have been stitching?
could you have been stitching?
could he have been stitching?
could we have been stitching?
could you have been stitching?
could they have been stitching? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I stitch?
couldn't you stitch?
couldn't he stitch?
couldn't we stitch?
couldn't you stitch?
couldn't they stitch? 	couldn't I be stitching?
couldn't you be stitching?
couldn't he be stitching?
couldn't we be stitching?
couldn't you be stitching?
couldn't they be stitching? 	couldn't I have stitched?
couldn't you have stitched?
couldn't he have stitched?
couldn't we have stitched?
couldn't you have stitched?
couldn't they have stitched? 	couldn't I have been stitching?
couldn't you have been stitching?
couldn't he have been stitching?
couldn't we have been stitching?
couldn't you have been stitching?
couldn't they have been stitching?