много ошибок

many mistakes

→ много
phrase Uncommon #22,978
many mistakes Used to say that there are or have been numerous mistakes. Много is followed by the genitive plural form ошибок.
RU: В этом отчёте много ошибок.
EN: There are many mistakes in this report.

В сочинении Тома много ошибок.

Tom's composition has many mistakes.

Она до того сделала так много ошибок.

She had made so many mistakes by then.

— Головой о стену (2004)

Я устала, а когда я уставшая, я делаю много ошибок.

I'm tired, and when I'm tired, I make a lot of mistakes.

У Тома в сочинении много ошибок.

Tom's essay has a lot of mistakes.

Том делает много ошибок, когда говорит по-французски.

Tom makes a lot of mistakes when he speaks French.

phrase Rare #38,548
many mistakes Used with the genitive plural noun form.
RU: Я сделал много ошибок в этом тесте.
EN: I made many mistakes on this test.

Том сделал много ошибок.

Tom made a lot of mistakes.

Много ошибок было сделано до вас.

Many mistakes were made before you.

— Бункер (2004)

Мы совершили много ошибок.

We made a lot of mistakes.

Я за свою жизнь совершил много ошибок.

I have made many mistakes in my life.

Том сделал много ошибок на контрольной.

Tom made a lot of mistakes on the test.