も

Noun Also
Nounも

も is a particle that means ”also”. It is used to emphasize that something also has something in common. It replaces the particle that would be where it is, usually は/が。
It is easiest to to think of it as replacing は。
Sometimes this particle is said to mean “too”, but this tends to cause a common mistake:

Common Mistake

Person A: わたしはねこがすき。watashiha neko ga suki – I like cats.

Person B:

• 〇わたしもねこがすきです。watashi mo neko ga suki -I also like cats.
• ✖わたしはねこもすきです。watashiha neko mo suki -I cats also like ✖
• ✖わたしはねこがすきもです。watashiha neko ga suki mo -I like cats too ✖

As these examples show, you must attach も to what has the thing in common. In this case, it attaches to me because I like cats, just like person A. It may be easier to remember as it replacing “は”.

Examples

• わたしもいく – I also will go. (I will go too).
• ぼくもうれしい I also am happy. (I am happy too).
• かれもつよい – He is also strong.
• かれもねこがすきだ – He also likes cats.

See also: Emphasis も