must krass
Verbo regolare: krass - krassed- krassed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must krass
you must krass
she must krass
we must krass
you must krass
they must krass 	I must be krassing
you must be krassing
she must be krassing
we must be krassing
you must be krassing
they must be krassing	I must have krassed
you must have krassed
she must have krassed
we must have krassed
you must have krassed
they must have krassed	I must have been krassing
you must have been krassing
she must have been krassing
we must have been krassing
you must have been krassing
they must have been krassing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not krass
you must not krass
she must not krass
we must not krass
you must not krass
they must not krass 	I must not be krassing
you must not be krassing
she must not be krassing
we must not be krassing
you must not be krassing
they must not be krassing	I must not have krassed
you must not have krassed
she must not have krassed
we must not have krassed
you must not have krassed
they must not have krassed	I must not have been krassing
you must not have been krassing
she must not have been krassing
we must not have been krassing
you must not have been krassing
they must not have been krassing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I krass?
must you krass?
must she krass?
must we krass?
must you krass?
must they krass? 	must I be krassing?
must you be krassing?
must she be krassing?
must we be krassing?
must you be krassing?
must they be krassing? 	must I have krassed?
must you have krassed?
must she have krassed?
must we have krassed?
must you have krassed?
must they have krassed? 	must I have been krassing?
must you have been krassing?
must she have been krassing?
must we have been krassing?
must you have been krassing?
must they have been krassing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not krass?
must you not krass?
must she not krass?
must we not krass?
must you not krass?
must they not krass? 	must I not be krassing?
must you not be krassing?
must she not be krassing?
must we not be krassing?
must you not be krassing?
must they not be krassing? 	must I not have krassed?
must you not have krassed?
must she not have krassed?
must we not have krassed?
must you not have krassed?
must they not have krassed? 	must I not have been krassing?
must you not have been krassing?
must she not have been krassing?
must we not have been krassing?
must you not have been krassing?
must they not have been krassing?