must crook
Verbo regular: crook - crooked- crooked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must crook
you must crook
he must crook
we must crook
you must crook
they must crook 	I must be crooking
you must be crooking
he must be crooking
we must be crooking
you must be crooking
they must be crooking	I must have crooked
you must have crooked
he must have crooked
we must have crooked
you must have crooked
they must have crooked	I must have been crooking
you must have been crooking
he must have been crooking
we must have been crooking
you must have been crooking
they must have been crooking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not crook
you must not crook
he must not crook
we must not crook
you must not crook
they must not crook 	I must not be crooking
you must not be crooking
he must not be crooking
we must not be crooking
you must not be crooking
they must not be crooking	I must not have crooked
you must not have crooked
he must not have crooked
we must not have crooked
you must not have crooked
they must not have crooked	I must not have been crooking
you must not have been crooking
he must not have been crooking
we must not have been crooking
you must not have been crooking
they must not have been crooking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I crook?
must you crook?
must he crook?
must we crook?
must you crook?
must they crook? 	must I be crooking?
must you be crooking?
must he be crooking?
must we be crooking?
must you be crooking?
must they be crooking? 	must I have crooked?
must you have crooked?
must he have crooked?
must we have crooked?
must you have crooked?
must they have crooked? 	must I have been crooking?
must you have been crooking?
must he have been crooking?
must we have been crooking?
must you have been crooking?
must they have been crooking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not crook?
must you not crook?
must he not crook?
must we not crook?
must you not crook?
must they not crook? 	must I not be crooking?
must you not be crooking?
must he not be crooking?
must we not be crooking?
must you not be crooking?
must they not be crooking? 	must I not have crooked?
must you not have crooked?
must he not have crooked?
must we not have crooked?
must you not have crooked?
must they not have crooked? 	must I not have been crooking?
must you not have been crooking?
must he not have been crooking?
must we not have been crooking?
must you not have been crooking?
must they not have been crooking?