Мне двадцать лет.

I am twenty years old.

Breakdown of Мне двадцать лет.

• я: I
• год: the year
• двадцать: twenty

Questions & Answers about Мне двадцать лет.

Why is it Мне двадцать лет and not Я двадцать лет if it means I am 20 years old?

Russian doesn’t use the subject я (I) plus a form of быть (to be) for age.

Instead, it uses a structure that literally means “To me there are 20 years.”

• Мне = to me (dative case of я)
• двадцать = twenty
• лет = years (a special form of год)

So the “owner” of the years is expressed in the dative case (мне), not as a subject я. That’s why Я двадцать лет is incorrect for saying your age.

What is the literal, word‑for‑word translation of Мне двадцать лет?

Literally, it is:

• Мне – to me
• двадцать – twenty
• лет – years

So, literally: To me [there are] twenty years.

Russian thinks of age as a certain number of years that “exists for” or “belongs to” a person, rather than a quality that the person “is.”

What case is мне, and why is it used here?