must fluoridate
Verbo regular: fluoridate - fluoridated- fluoridated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must fluoridate
you must fluoridate
she must fluoridate
we must fluoridate
you must fluoridate
they must fluoridate 	I must be fluoridating
you must be fluoridating
she must be fluoridating
we must be fluoridating
you must be fluoridating
they must be fluoridating	I must have fluoridated
you must have fluoridated
she must have fluoridated
we must have fluoridated
you must have fluoridated
they must have fluoridated	I must have been fluoridating
you must have been fluoridating
she must have been fluoridating
we must have been fluoridating
you must have been fluoridating
they must have been fluoridating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not fluoridate
you must not fluoridate
she must not fluoridate
we must not fluoridate
you must not fluoridate
they must not fluoridate 	I must not be fluoridating
you must not be fluoridating
she must not be fluoridating
we must not be fluoridating
you must not be fluoridating
they must not be fluoridating	I must not have fluoridated
you must not have fluoridated
she must not have fluoridated
we must not have fluoridated
you must not have fluoridated
they must not have fluoridated	I must not have been fluoridating
you must not have been fluoridating
she must not have been fluoridating
we must not have been fluoridating
you must not have been fluoridating
they must not have been fluoridating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I fluoridate?
must you fluoridate?
must she fluoridate?
must we fluoridate?
must you fluoridate?
must they fluoridate? 	must I be fluoridating?
must you be fluoridating?
must she be fluoridating?
must we be fluoridating?
must you be fluoridating?
must they be fluoridating? 	must I have fluoridated?
must you have fluoridated?
must she have fluoridated?
must we have fluoridated?
must you have fluoridated?
must they have fluoridated? 	must I have been fluoridating?
must you have been fluoridating?
must she have been fluoridating?
must we have been fluoridating?
must you have been fluoridating?
must they have been fluoridating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not fluoridate?
must you not fluoridate?
must she not fluoridate?
must we not fluoridate?
must you not fluoridate?
must they not fluoridate? 	must I not be fluoridating?
must you not be fluoridating?
must she not be fluoridating?
must we not be fluoridating?
must you not be fluoridating?
must they not be fluoridating? 	must I not have fluoridated?
must you not have fluoridated?
must she not have fluoridated?
must we not have fluoridated?
must you not have fluoridated?
must they not have fluoridated? 	must I not have been fluoridating?
must you not have been fluoridating?
must she not have been fluoridating?
must we not have been fluoridating?
must you not have been fluoridating?
must they not have been fluoridating?