Местоимения

I — me — my — mine — myself

Уровень A1 правило грамматики

Личное	Объектное	Притяжательное	Абсолютное	Возвратное
I	me	my	mine	myself
you	you	your	yours	yourself
he	him	his	his	himself
she	her	her	hers	herself
it	it	its	—	itself
we	us	our	ours	ourselves
they	them	their	theirs	themselves

Примеры: I see him. This is my book. The book is mine. I did it myself.

its (его/её — притяжательное) ≠ it's (= it is). their (их) ≠ there (там) ≠ they're (= they are).

Проверьте, усвоилось ли

К каждому правилу в LexiCore есть тренировка с разбором ошибок — объясняем по-русски, что именно не так.