I don't speak Russian, but according to Google Translate you're asking for the plural from of 'it'. I apologise if any of this was mistranslated.
Я не говорю на русском, но в соответствии с Google Translate вы просите от множественного, 'it'. Я прошу прощения, если все это было ошибочно.
'they' in nominative (subject of the sentence) именительный
'them' in accusative (object of the sentence) винительный
Ex.
I have a fish. It is very small. I feed it often.
I have four fish. They are very small. I feed them often.