must shade
Regular verb: shade - shaded- shaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must shade
you must shade
she must shade
we must shade
you must shade
they must shade 	I must be shading
you must be shading
she must be shading
we must be shading
you must be shading
they must be shading	I must have shaded
you must have shaded
she must have shaded
we must have shaded
you must have shaded
they must have shaded	I must have been shading
you must have been shading
she must have been shading
we must have been shading
you must have been shading
they must have been shading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't shade
you mustn't shade
she mustn't shade
we mustn't shade
you mustn't shade
they mustn't shade 	I mustn't be shading
you mustn't be shading
she mustn't be shading
we mustn't be shading
you mustn't be shading
they mustn't be shading	I mustn't have shaded
you mustn't have shaded
she mustn't have shaded
we mustn't have shaded
you mustn't have shaded
they mustn't have shaded	I mustn't have been shading
you mustn't have been shading
she mustn't have been shading
we mustn't have been shading
you mustn't have been shading
they mustn't have been shading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I shade?
must you shade?
must she shade?
must we shade?
must you shade?
must they shade? 	must I be shading?
must you be shading?
must she be shading?
must we be shading?
must you be shading?
must they be shading? 	must I have shaded?
must you have shaded?
must she have shaded?
must we have shaded?
must you have shaded?
must they have shaded? 	must I have been shading?
must you have been shading?
must she have been shading?
must we have been shading?
must you have been shading?
must they have been shading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I shade?
mustn't you shade?
mustn't she shade?
mustn't we shade?
mustn't you shade?
mustn't they shade? 	mustn't I be shading?
mustn't you be shading?
mustn't she be shading?
mustn't we be shading?
mustn't you be shading?
mustn't they be shading? 	mustn't I have shaded?
mustn't you have shaded?
mustn't she have shaded?
mustn't we have shaded?
mustn't you have shaded?
mustn't they have shaded? 	mustn't I have been shading?
mustn't you have been shading?
mustn't she have been shading?
mustn't we have been shading?
mustn't you have been shading?
mustn't they have been shading?