must cabin
Regular verb: cabin - cabined- cabined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cabin
you must cabin
he must cabin
we must cabin
you must cabin
they must cabin 	I must be cabining
you must be cabining
he must be cabining
we must be cabining
you must be cabining
they must be cabining	I must have cabined
you must have cabined
he must have cabined
we must have cabined
you must have cabined
they must have cabined	I must have been cabining
you must have been cabining
he must have been cabining
we must have been cabining
you must have been cabining
they must have been cabining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not cabin
you must not cabin
he must not cabin
we must not cabin
you must not cabin
they must not cabin 	I must not be cabining
you must not be cabining
he must not be cabining
we must not be cabining
you must not be cabining
they must not be cabining	I must not have cabined
you must not have cabined
he must not have cabined
we must not have cabined
you must not have cabined
they must not have cabined	I must not have been cabining
you must not have been cabining
he must not have been cabining
we must not have been cabining
you must not have been cabining
they must not have been cabining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I cabin?
must you cabin?
must he cabin?
must we cabin?
must you cabin?
must they cabin? 	must I be cabining?
must you be cabining?
must he be cabining?
must we be cabining?
must you be cabining?
must they be cabining? 	must I have cabined?
must you have cabined?
must he have cabined?
must we have cabined?
must you have cabined?
must they have cabined? 	must I have been cabining?
must you have been cabining?
must he have been cabining?
must we have been cabining?
must you have been cabining?
must they have been cabining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not cabin?
must you not cabin?
must he not cabin?
must we not cabin?
must you not cabin?
must they not cabin? 	must I not be cabining?
must you not be cabining?
must he not be cabining?
must we not be cabining?
must you not be cabining?
must they not be cabining? 	must I not have cabined?
must you not have cabined?
must he not have cabined?
must we not have cabined?
must you not have cabined?
must they not have cabined? 	must I not have been cabining?
must you not have been cabining?
must he not have been cabining?
must we not have been cabining?
must you not have been cabining?
must they not have been cabining?