也【yě】

也 means "also" or "too". It goes after the subject and before the verb or adjective.

English puts "too" at the end of the sentence. 也 can't go there, and it can't go before the subject either.

• × 我是学生也 → 我也是学生
• × 也我是学生 → 我也是学生

With an adjective, 也 goes in front of hěn很 or whatever adverb the adjective carries.

With a negative

也 comes before 不 or 没, and the sentence means "not… either".

• × 我不也去 → 我也不去

What 也 attaches to

By default 也 adds the subject to a list: 我也去 means someone else is going and so am I. To add a second action for the same person, the sentence makes that clear with a second verb phrase, or by putting the object first as the topic.

也 with 都

Both go before the verb, and 也 comes first.

• × 他们都也来了 → 他们也都来了