could search
Regular verb: search - searched- searched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could search
you could search
she could search
we could search
you could search
they could search 	I could be searching
you could be searching
she could be searching
we could be searching
you could be searching
they could be searching	I could have searched
you could have searched
she could have searched
we could have searched
you could have searched
they could have searched	I could have been searching
you could have been searching
she could have been searching
we could have been searching
you could have been searching
they could have been searching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't search
you couldn't search
she couldn't search
we couldn't search
you couldn't search
they couldn't search 	I couldn't be searching
you couldn't be searching
she couldn't be searching
we couldn't be searching
you couldn't be searching
they couldn't be searching	I couldn't have searched
you couldn't have searched
she couldn't have searched
we couldn't have searched
you couldn't have searched
they couldn't have searched	I couldn't have been searching
you couldn't have been searching
she couldn't have been searching
we couldn't have been searching
you couldn't have been searching
they couldn't have been searching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I search?
could you search?
could she search?
could we search?
could you search?
could they search? 	could I be searching?
could you be searching?
could she be searching?
could we be searching?
could you be searching?
could they be searching? 	could I have searched?
could you have searched?
could she have searched?
could we have searched?
could you have searched?
could they have searched? 	could I have been searching?
could you have been searching?
could she have been searching?
could we have been searching?
could you have been searching?
could they have been searching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I search?
couldn't you search?
couldn't she search?
couldn't we search?
couldn't you search?
couldn't they search? 	couldn't I be searching?
couldn't you be searching?
couldn't she be searching?
couldn't we be searching?
couldn't you be searching?
couldn't they be searching? 	couldn't I have searched?
couldn't you have searched?
couldn't she have searched?
couldn't we have searched?
couldn't you have searched?
couldn't they have searched? 	couldn't I have been searching?
couldn't you have been searching?
couldn't she have been searching?
couldn't we have been searching?
couldn't you have been searching?
couldn't they have been searching?