Does Japanese Have Declension?

Japanese has no grammatical gender, number, or articles; though the demonstrative その (sono, "that, those"), is often translatable as "the".

Does Japanese have subject verb agreement?

There is no grammatical subject-verb agreement in Japanese. "Da" is used for the present tense of the to be-verb (is, are, am) regardless of the person and number of the subject. ... It is equivalent to both future and past tense in English.

Do you conjugate nouns in Japanese?

In Japanese, negative and past tense are all expressed by conjugation. We can conjugate a noun or adjective to either its negative or past tense to say that something is not [X] or that something was [X]. ... First, for the negative tense, you simply attach 「じゃない」 to the noun or na-adjective.