must swash
Regular verb: swash - swashed- swashed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must swash
you must swash
she must swash
we must swash
you must swash
they must swash 	I must be swashing
you must be swashing
she must be swashing
we must be swashing
you must be swashing
they must be swashing	I must have swashed
you must have swashed
she must have swashed
we must have swashed
you must have swashed
they must have swashed	I must have been swashing
you must have been swashing
she must have been swashing
we must have been swashing
you must have been swashing
they must have been swashing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not swash
you must not swash
she must not swash
we must not swash
you must not swash
they must not swash 	I must not be swashing
you must not be swashing
she must not be swashing
we must not be swashing
you must not be swashing
they must not be swashing	I must not have swashed
you must not have swashed
she must not have swashed
we must not have swashed
you must not have swashed
they must not have swashed	I must not have been swashing
you must not have been swashing
she must not have been swashing
we must not have been swashing
you must not have been swashing
they must not have been swashing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I swash?
must you swash?
must she swash?
must we swash?
must you swash?
must they swash? 	must I be swashing?
must you be swashing?
must she be swashing?
must we be swashing?
must you be swashing?
must they be swashing? 	must I have swashed?
must you have swashed?
must she have swashed?
must we have swashed?
must you have swashed?
must they have swashed? 	must I have been swashing?
must you have been swashing?
must she have been swashing?
must we have been swashing?
must you have been swashing?
must they have been swashing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not swash?
must you not swash?
must she not swash?
must we not swash?
must you not swash?
must they not swash? 	must I not be swashing?
must you not be swashing?
must she not be swashing?
must we not be swashing?
must you not be swashing?
must they not be swashing? 	must I not have swashed?
must you not have swashed?
must she not have swashed?
must we not have swashed?
must you not have swashed?
must they not have swashed? 	must I not have been swashing?
must you not have been swashing?
must she not have been swashing?
must we not have been swashing?
must you not have been swashing?
must they not have been swashing?