In Ukrainian there are no "these/those"?
Ці овочі не мої овочі ~~> ці = these, but the sentence is tautological, of course ("These vegetables are not my vegetables")
There fore, replace "ці овочі" by "це" (recall German "das"): Це не мої овочі ("These are not my vegetables")
So we use це when it is the subject and we use цей, ця, ці when they are demonstrative?
Yes! I am not sure what demonstrative is, but when "this" is like a modifier rather than a subject you use цей/ця/ці
Yes, it's exactly what I meant, дуже вдячний вам! And what if the noun that it modifies is neuter, do we use це?
Very good explanation thank you
But if you can substitute this/these with it/they, you should put "це"