could locate
Regular verb: locate - located- located

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could locate
you could locate
she could locate
we could locate
you could locate
they could locate 	I could be locating
you could be locating
she could be locating
we could be locating
you could be locating
they could be locating	I could have located
you could have located
she could have located
we could have located
you could have located
they could have located	I could have been locating
you could have been locating
she could have been locating
we could have been locating
you could have been locating
they could have been locating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't locate
you couldn't locate
she couldn't locate
we couldn't locate
you couldn't locate
they couldn't locate 	I couldn't be locating
you couldn't be locating
she couldn't be locating
we couldn't be locating
you couldn't be locating
they couldn't be locating	I couldn't have located
you couldn't have located
she couldn't have located
we couldn't have located
you couldn't have located
they couldn't have located	I couldn't have been locating
you couldn't have been locating
she couldn't have been locating
we couldn't have been locating
you couldn't have been locating
they couldn't have been locating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I locate?
could you locate?
could she locate?
could we locate?
could you locate?
could they locate? 	could I be locating?
could you be locating?
could she be locating?
could we be locating?
could you be locating?
could they be locating? 	could I have located?
could you have located?
could she have located?
could we have located?
could you have located?
could they have located? 	could I have been locating?
could you have been locating?
could she have been locating?
could we have been locating?
could you have been locating?
could they have been locating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I locate?
couldn't you locate?
couldn't she locate?
couldn't we locate?
couldn't you locate?
couldn't they locate? 	couldn't I be locating?
couldn't you be locating?
couldn't she be locating?
couldn't we be locating?
couldn't you be locating?
couldn't they be locating? 	couldn't I have located?
couldn't you have located?
couldn't she have located?
couldn't we have located?
couldn't you have located?
couldn't they have located? 	couldn't I have been locating?
couldn't you have been locating?
couldn't she have been locating?
couldn't we have been locating?
couldn't you have been locating?
couldn't they have been locating?