"These are my glasses."

Translation: Это мои очки.

[HopperKremer]

These are spectacles, to be clear.

[MattinMaverick]

Why not "это мои очков"?

[mightypotatoe]

Because "glasses" are the object of this sentence and should be in the accusative not the genitive.

[MattinMaverick]

You mean it should be in nominative?

[mightypotatoe]

Sorry, I meant to say object of the sentence not subject. Corrected now.

[Paul440929]

Actually, while "мои очки"/"are my glasses" is the predicate of the sentence, "мои очки"/"my glasses" is not the object. As in Latin, for simple "is/are" statements, both nouns take the nominative case. For example:

"Это моя книга",
and not "Это мою книгу".

[Shady_arc]

Очки is a complement, to be more precise.

[Matthias143324]

why is эти очки от меня wrong

[Henry741757]

That would mean 'these glasses are from me'.

[Jeffrey855877]

This is one instance where context makes a huge difference. If you don't have a pair of glasses close by....https://en.wiktionary.org/wiki/%D0%BE%D1%87%D0%BA%D0%BE

[gumarcher]

why эти мои очки isnt working? I thought очки is a plural noun therefore we should use эти ??