Grammar JLPT Level N5 - Lesson 2

Structure of よ:

Sentence + よ

Details about よ:

よ is classified as a sentence ending particle in Japanese. In most cases, it is used to convey new information to the listener, or just to add a bit of emphasis. Like most sentence ending particles, it is simply added to the end of almost any sentence.

それは熱(あつ)いよ。
That is hot!
明日(あした)は雨(あめ)だよ。
It's going to rain tomorrow!

Despite the regular use of よ being to convey new information, it is very regularly paired with ね, to convey the meaning of 'right?!'. Literally it means something closer to 'I think (A), and I bet you think (A) too!'.

あれは先生(せんせい)だよね。
That over there is a teacher, right?
車(くるま)は高(たか)いよね。
Don't you think cars are expensive?

よ

Usage Notes for よ:

Did you notice that there is a だ after the noun, but not the い-Adjective? This is not a unique rule for よ, but just one of the regular conjugation rules introduced in the lessons for い-Adjectives and な-Adjectives. It is also acceptable to use ですよ after either type of adjective (or noun).