must crane
Regular verb: crane - craned- craned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must crane
you must crane
he must crane
we must crane
you must crane
they must crane 	I must be craning
you must be craning
he must be craning
we must be craning
you must be craning
they must be craning	I must have craned
you must have craned
he must have craned
we must have craned
you must have craned
they must have craned	I must have been craning
you must have been craning
he must have been craning
we must have been craning
you must have been craning
they must have been craning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not crane
you must not crane
he must not crane
we must not crane
you must not crane
they must not crane 	I must not be craning
you must not be craning
he must not be craning
we must not be craning
you must not be craning
they must not be craning	I must not have craned
you must not have craned
he must not have craned
we must not have craned
you must not have craned
they must not have craned	I must not have been craning
you must not have been craning
he must not have been craning
we must not have been craning
you must not have been craning
they must not have been craning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I crane?
must you crane?
must he crane?
must we crane?
must you crane?
must they crane? 	must I be craning?
must you be craning?
must he be craning?
must we be craning?
must you be craning?
must they be craning? 	must I have craned?
must you have craned?
must he have craned?
must we have craned?
must you have craned?
must they have craned? 	must I have been craning?
must you have been craning?
must he have been craning?
must we have been craning?
must you have been craning?
must they have been craning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not crane?
must you not crane?
must he not crane?
must we not crane?
must you not crane?
must they not crane? 	must I not be craning?
must you not be craning?
must he not be craning?
must we not be craning?
must you not be craning?
must they not be craning? 	must I not have craned?
must you not have craned?
must he not have craned?
must we not have craned?
must you not have craned?
must they not have craned? 	must I not have been craning?
must you not have been craning?
must he not have been craning?
must we not have been craning?
must you not have been craning?
must they not have been craning?