could preadvertise
Verbo regular: preadvertise - preadvertised- preadvertised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could preadvertise
you could preadvertise
he could preadvertise
we could preadvertise
you could preadvertise
they could preadvertise 	I could be preadvertising
you could be preadvertising
he could be preadvertising
we could be preadvertising
you could be preadvertising
they could be preadvertising	I could have preadvertised
you could have preadvertised
he could have preadvertised
we could have preadvertised
you could have preadvertised
they could have preadvertised	I could have been preadvertising
you could have been preadvertising
he could have been preadvertising
we could have been preadvertising
you could have been preadvertising
they could have been preadvertising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't preadvertise
you couldn't preadvertise
he couldn't preadvertise
we couldn't preadvertise
you couldn't preadvertise
they couldn't preadvertise 	I couldn't be preadvertising
you couldn't be preadvertising
he couldn't be preadvertising
we couldn't be preadvertising
you couldn't be preadvertising
they couldn't be preadvertising	I couldn't have preadvertised
you couldn't have preadvertised
he couldn't have preadvertised
we couldn't have preadvertised
you couldn't have preadvertised
they couldn't have preadvertised	I couldn't have been preadvertising
you couldn't have been preadvertising
he couldn't have been preadvertising
we couldn't have been preadvertising
you couldn't have been preadvertising
they couldn't have been preadvertising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I preadvertise?
could you preadvertise?
could he preadvertise?
could we preadvertise?
could you preadvertise?
could they preadvertise? 	could I be preadvertising?
could you be preadvertising?
could he be preadvertising?
could we be preadvertising?
could you be preadvertising?
could they be preadvertising? 	could I have preadvertised?
could you have preadvertised?
could he have preadvertised?
could we have preadvertised?
could you have preadvertised?
could they have preadvertised? 	could I have been preadvertising?
could you have been preadvertising?
could he have been preadvertising?
could we have been preadvertising?
could you have been preadvertising?
could they have been preadvertising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I preadvertise?
couldn't you preadvertise?
couldn't he preadvertise?
couldn't we preadvertise?
couldn't you preadvertise?
couldn't they preadvertise? 	couldn't I be preadvertising?
couldn't you be preadvertising?
couldn't he be preadvertising?
couldn't we be preadvertising?
couldn't you be preadvertising?
couldn't they be preadvertising? 	couldn't I have preadvertised?
couldn't you have preadvertised?
couldn't he have preadvertised?
couldn't we have preadvertised?
couldn't you have preadvertised?
couldn't they have preadvertised? 	couldn't I have been preadvertising?
couldn't you have been preadvertising?
couldn't he have been preadvertising?
couldn't we have been preadvertising?
couldn't you have been preadvertising?
couldn't they have been preadvertising?