could fluoridate
Verbo regular: fluoridate - fluoridated- fluoridated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could fluoridate
you could fluoridate
he could fluoridate
we could fluoridate
you could fluoridate
they could fluoridate 	I could be fluoridating
you could be fluoridating
he could be fluoridating
we could be fluoridating
you could be fluoridating
they could be fluoridating	I could have fluoridated
you could have fluoridated
he could have fluoridated
we could have fluoridated
you could have fluoridated
they could have fluoridated	I could have been fluoridating
you could have been fluoridating
he could have been fluoridating
we could have been fluoridating
you could have been fluoridating
they could have been fluoridating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not fluoridate
you could not fluoridate
he could not fluoridate
we could not fluoridate
you could not fluoridate
they could not fluoridate 	I could not be fluoridating
you could not be fluoridating
he could not be fluoridating
we could not be fluoridating
you could not be fluoridating
they could not be fluoridating	I could not have fluoridated
you could not have fluoridated
he could not have fluoridated
we could not have fluoridated
you could not have fluoridated
they could not have fluoridated	I could not have been fluoridating
you could not have been fluoridating
he could not have been fluoridating
we could not have been fluoridating
you could not have been fluoridating
they could not have been fluoridating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I fluoridate?
could you fluoridate?
could he fluoridate?
could we fluoridate?
could you fluoridate?
could they fluoridate? 	could I be fluoridating?
could you be fluoridating?
could he be fluoridating?
could we be fluoridating?
could you be fluoridating?
could they be fluoridating? 	could I have fluoridated?
could you have fluoridated?
could he have fluoridated?
could we have fluoridated?
could you have fluoridated?
could they have fluoridated? 	could I have been fluoridating?
could you have been fluoridating?
could he have been fluoridating?
could we have been fluoridating?
could you have been fluoridating?
could they have been fluoridating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not fluoridate?
could you not fluoridate?
could he not fluoridate?
could we not fluoridate?
could you not fluoridate?
could they not fluoridate? 	could I not be fluoridating?
could you not be fluoridating?
could he not be fluoridating?
could we not be fluoridating?
could you not be fluoridating?
could they not be fluoridating? 	could I not have fluoridated?
could you not have fluoridated?
could he not have fluoridated?
could we not have fluoridated?
could you not have fluoridated?
could they not have fluoridated? 	could I not have been fluoridating?
could you not have been fluoridating?
could he not have been fluoridating?
could we not have been fluoridating?
could you not have been fluoridating?
could they not have been fluoridating?