must swear
Irregular verb: swear - swore- sworn

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must swear
you must swear
he must swear
we must swear
you must swear
they must swear 	I must be swearing
you must be swearing
he must be swearing
we must be swearing
you must be swearing
they must be swearing	I must have sworn
you must have sworn
he must have sworn
we must have sworn
you must have sworn
they must have sworn	I must have been swearing
you must have been swearing
he must have been swearing
we must have been swearing
you must have been swearing
they must have been swearing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not swear
you must not swear
he must not swear
we must not swear
you must not swear
they must not swear 	I must not be swearing
you must not be swearing
he must not be swearing
we must not be swearing
you must not be swearing
they must not be swearing	I must not have sworn
you must not have sworn
he must not have sworn
we must not have sworn
you must not have sworn
they must not have sworn	I must not have been swearing
you must not have been swearing
he must not have been swearing
we must not have been swearing
you must not have been swearing
they must not have been swearing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I swear?
must you swear?
must he swear?
must we swear?
must you swear?
must they swear? 	must I be swearing?
must you be swearing?
must he be swearing?
must we be swearing?
must you be swearing?
must they be swearing? 	must I have sworn?
must you have sworn?
must he have sworn?
must we have sworn?
must you have sworn?
must they have sworn? 	must I have been swearing?
must you have been swearing?
must he have been swearing?
must we have been swearing?
must you have been swearing?
must they have been swearing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not swear?
must you not swear?
must he not swear?
must we not swear?
must you not swear?
must they not swear? 	must I not be swearing?
must you not be swearing?
must he not be swearing?
must we not be swearing?
must you not be swearing?
must they not be swearing? 	must I not have sworn?
must you not have sworn?
must he not have sworn?
must we not have sworn?
must you not have sworn?
must they not have sworn? 	must I not have been swearing?
must you not have been swearing?
must he not have been swearing?
must we not have been swearing?
must you not have been swearing?
must they not have been swearing?