must welsh
Verbo regular: welsh - welshed- welshed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must welsh
you must welsh
she must welsh
we must welsh
you must welsh
they must welsh 	I must be welshing
you must be welshing
she must be welshing
we must be welshing
you must be welshing
they must be welshing	I must have welshed
you must have welshed
she must have welshed
we must have welshed
you must have welshed
they must have welshed	I must have been welshing
you must have been welshing
she must have been welshing
we must have been welshing
you must have been welshing
they must have been welshing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't welsh
you mustn't welsh
she mustn't welsh
we mustn't welsh
you mustn't welsh
they mustn't welsh 	I mustn't be welshing
you mustn't be welshing
she mustn't be welshing
we mustn't be welshing
you mustn't be welshing
they mustn't be welshing	I mustn't have welshed
you mustn't have welshed
she mustn't have welshed
we mustn't have welshed
you mustn't have welshed
they mustn't have welshed	I mustn't have been welshing
you mustn't have been welshing
she mustn't have been welshing
we mustn't have been welshing
you mustn't have been welshing
they mustn't have been welshing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I welsh?
must you welsh?
must she welsh?
must we welsh?
must you welsh?
must they welsh? 	must I be welshing?
must you be welshing?
must she be welshing?
must we be welshing?
must you be welshing?
must they be welshing? 	must I have welshed?
must you have welshed?
must she have welshed?
must we have welshed?
must you have welshed?
must they have welshed? 	must I have been welshing?
must you have been welshing?
must she have been welshing?
must we have been welshing?
must you have been welshing?
must they have been welshing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I welsh?
mustn't you welsh?
mustn't she welsh?
mustn't we welsh?
mustn't you welsh?
mustn't they welsh? 	mustn't I be welshing?
mustn't you be welshing?
mustn't she be welshing?
mustn't we be welshing?
mustn't you be welshing?
mustn't they be welshing? 	mustn't I have welshed?
mustn't you have welshed?
mustn't she have welshed?
mustn't we have welshed?
mustn't you have welshed?
mustn't they have welshed? 	mustn't I have been welshing?
mustn't you have been welshing?
mustn't she have been welshing?
mustn't we have been welshing?
mustn't you have been welshing?
mustn't they have been welshing?