English verb conjugation
COULD LOCATE

Regular verb: locate - located - located

Affirmation

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