must spindle
Regular verb: spindle - spindled- spindled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must spindle
you must spindle
she must spindle
we must spindle
you must spindle
they must spindle 	I must be spindling
you must be spindling
she must be spindling
we must be spindling
you must be spindling
they must be spindling	I must have spindled
you must have spindled
she must have spindled
we must have spindled
you must have spindled
they must have spindled	I must have been spindling
you must have been spindling
she must have been spindling
we must have been spindling
you must have been spindling
they must have been spindling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't spindle
you mustn't spindle
she mustn't spindle
we mustn't spindle
you mustn't spindle
they mustn't spindle 	I mustn't be spindling
you mustn't be spindling
she mustn't be spindling
we mustn't be spindling
you mustn't be spindling
they mustn't be spindling	I mustn't have spindled
you mustn't have spindled
she mustn't have spindled
we mustn't have spindled
you mustn't have spindled
they mustn't have spindled	I mustn't have been spindling
you mustn't have been spindling
she mustn't have been spindling
we mustn't have been spindling
you mustn't have been spindling
they mustn't have been spindling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I spindle?
must you spindle?
must she spindle?
must we spindle?
must you spindle?
must they spindle? 	must I be spindling?
must you be spindling?
must she be spindling?
must we be spindling?
must you be spindling?
must they be spindling? 	must I have spindled?
must you have spindled?
must she have spindled?
must we have spindled?
must you have spindled?
must they have spindled? 	must I have been spindling?
must you have been spindling?
must she have been spindling?
must we have been spindling?
must you have been spindling?
must they have been spindling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I spindle?
mustn't you spindle?
mustn't she spindle?
mustn't we spindle?
mustn't you spindle?
mustn't they spindle? 	mustn't I be spindling?
mustn't you be spindling?
mustn't she be spindling?
mustn't we be spindling?
mustn't you be spindling?
mustn't they be spindling? 	mustn't I have spindled?
mustn't you have spindled?
mustn't she have spindled?
mustn't we have spindled?
mustn't you have spindled?
mustn't they have spindled? 	mustn't I have been spindling?
mustn't you have been spindling?
mustn't she have been spindling?
mustn't we have been spindling?
mustn't you have been spindling?
mustn't they have been spindling?