could readvertise
Regular verb: readvertise - readvertised- readvertised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could readvertise
you could readvertise
she could readvertise
we could readvertise
you could readvertise
they could readvertise 	I could be readvertising
you could be readvertising
she could be readvertising
we could be readvertising
you could be readvertising
they could be readvertising	I could have readvertised
you could have readvertised
she could have readvertised
we could have readvertised
you could have readvertised
they could have readvertised	I could have been readvertising
you could have been readvertising
she could have been readvertising
we could have been readvertising
you could have been readvertising
they could have been readvertising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't readvertise
you couldn't readvertise
she couldn't readvertise
we couldn't readvertise
you couldn't readvertise
they couldn't readvertise 	I couldn't be readvertising
you couldn't be readvertising
she couldn't be readvertising
we couldn't be readvertising
you couldn't be readvertising
they couldn't be readvertising	I couldn't have readvertised
you couldn't have readvertised
she couldn't have readvertised
we couldn't have readvertised
you couldn't have readvertised
they couldn't have readvertised	I couldn't have been readvertising
you couldn't have been readvertising
she couldn't have been readvertising
we couldn't have been readvertising
you couldn't have been readvertising
they couldn't have been readvertising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I readvertise?
could you readvertise?
could she readvertise?
could we readvertise?
could you readvertise?
could they readvertise? 	could I be readvertising?
could you be readvertising?
could she be readvertising?
could we be readvertising?
could you be readvertising?
could they be readvertising? 	could I have readvertised?
could you have readvertised?
could she have readvertised?
could we have readvertised?
could you have readvertised?
could they have readvertised? 	could I have been readvertising?
could you have been readvertising?
could she have been readvertising?
could we have been readvertising?
could you have been readvertising?
could they have been readvertising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I readvertise?
couldn't you readvertise?
couldn't she readvertise?
couldn't we readvertise?
couldn't you readvertise?
couldn't they readvertise? 	couldn't I be readvertising?
couldn't you be readvertising?
couldn't she be readvertising?
couldn't we be readvertising?
couldn't you be readvertising?
couldn't they be readvertising? 	couldn't I have readvertised?
couldn't you have readvertised?
couldn't she have readvertised?
couldn't we have readvertised?
couldn't you have readvertised?
couldn't they have readvertised? 	couldn't I have been readvertising?
couldn't you have been readvertising?
couldn't she have been readvertising?
couldn't we have been readvertising?
couldn't you have been readvertising?
couldn't they have been readvertising?