must machine-stitch
Verbo regular: machine-stitch - machine-stitched- machine-stitched

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

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

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

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