每个月都

every month

→ 每
phrase Rare #22,758
every month Expresses that something happens regularly each month. 都 emphasizes that this happens every month without exception or as a consistent pattern.
CH: 我每个月都去看望父母。
EN: I visit my parents every month.

汤姆不是每个月都澳大利亚

Doesn't Tom go to Australia every month?

能不能每个月都一次

Could you come once a month?

— 红猪 (1992)

那不是每个月都会发生一次

Doesn’t that happen once a month?

— 大病 (2017)

我当时每个月都购买本书

I used to buy five books every month back then.