まっすぐ

straight (ahead), direct

na-adjective

Conjugation Table

Present

まっすぐだ

Negative

まっすぐじゃない

Past

まっすぐだった

Past Negative

まっすぐじゃなかった

Te Form

まっすぐで

Adverbial

まっすぐに

Conditional

まっすぐなら

Presumptive

まっすぐでしょう

Example Sentences

彼はまっすぐな人です。

He is a straightforward person.

Kare wa massugu na hito desu.

この道をまっすぐ行きました。

I went straight on this road.

Kono michi o massugu ikimashita.

彼女はまっすぐではありません。

She is not straightforward.

Kanojo wa massugu de wa arimasen.

Grammar Notes & Usage Tips

•Na-Adjective Basics**: Although まっすぐ is often used as an adverb meaning "straight ahead," it can also function as a na-adjective. When used as a na-adjective, you might hear it in phrases like まっすぐな道 ("a straight road").

•Particle Pairing**: When giving directions, pair まっすぐ with the particle に to indicate movement or direction, as in まっすぐに行ってください ("Please go straight").

•Conjugation Caution**: Unlike i-adjectives, na-adjectives like まっすぐ don't change form when modifying nouns directly. So, you’d say まっすぐな (not まっすぐい) to describe a noun, such as まっすぐな線 ("a straight line").

•Adverbial Use**: In many everyday contexts, まっすぐ is used as an adverb without any additional changes. For example, まっすぐ歩く means "to walk straight," making it versatile in both describing actions and directions.

•な-adjective: Uses な before nouns, conjugates like a noun