〜でした

〜でした is part of the copula system in Japanese, expressing was (polite past). The copula connects subjects to descriptions or identifications, similar to "is/am/are" in English, though Japanese copula expressions work quite differently from their English counterparts.

This is a foundational pattern that you will use from day one of your Japanese studies.

When to Use#

• When describing what something was in the past
• When talking about a past state or identity

When NOT to Use#

• In very formal writing where a more sophisticated expression would be expected

Example Sentences#

• 先週は暇でした。 — Last week was free.
• 昨日は日曜日でした。 — Yesterday was Sunday.
• 先月は十一月でした。 — Last month was November.

Practice#

Try reading these sentences aloud, then check the translation and vocabulary:

Common Mistakes#

1. Direct translation from English — The concept expressed by 〜でした may not map one-to-one with its English translation. Focus on understanding the Japanese usage through example sentences rather than relying on the English gloss.