must swaddle
Regular verb: swaddle - swaddled- swaddled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must swaddle
you must swaddle
she must swaddle
we must swaddle
you must swaddle
they must swaddle 	I must be swaddling
you must be swaddling
she must be swaddling
we must be swaddling
you must be swaddling
they must be swaddling	I must have swaddled
you must have swaddled
she must have swaddled
we must have swaddled
you must have swaddled
they must have swaddled	I must have been swaddling
you must have been swaddling
she must have been swaddling
we must have been swaddling
you must have been swaddling
they must have been swaddling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not swaddle
you must not swaddle
she must not swaddle
we must not swaddle
you must not swaddle
they must not swaddle 	I must not be swaddling
you must not be swaddling
she must not be swaddling
we must not be swaddling
you must not be swaddling
they must not be swaddling	I must not have swaddled
you must not have swaddled
she must not have swaddled
we must not have swaddled
you must not have swaddled
they must not have swaddled	I must not have been swaddling
you must not have been swaddling
she must not have been swaddling
we must not have been swaddling
you must not have been swaddling
they must not have been swaddling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I swaddle?
must you swaddle?
must she swaddle?
must we swaddle?
must you swaddle?
must they swaddle? 	must I be swaddling?
must you be swaddling?
must she be swaddling?
must we be swaddling?
must you be swaddling?
must they be swaddling? 	must I have swaddled?
must you have swaddled?
must she have swaddled?
must we have swaddled?
must you have swaddled?
must they have swaddled? 	must I have been swaddling?
must you have been swaddling?
must she have been swaddling?
must we have been swaddling?
must you have been swaddling?
must they have been swaddling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not swaddle?
must you not swaddle?
must she not swaddle?
must we not swaddle?
must you not swaddle?
must they not swaddle? 	must I not be swaddling?
must you not be swaddling?
must she not be swaddling?
must we not be swaddling?
must you not be swaddling?
must they not be swaddling? 	must I not have swaddled?
must you not have swaddled?
must she not have swaddled?
must we not have swaddled?
must you not have swaddled?
must they not have swaddled? 	must I not have been swaddling?
must you not have been swaddling?
must she not have been swaddling?
must we not have been swaddling?
must you not have been swaddling?
must they not have been swaddling?