～も～ない

About

The ～も～ない pattern can be used to express that there is a low or insufficient quantity of something. More specifically, that an amount "doesn't even reach X value".

To form this pattern, も is attached to the insufficient quantity or category and is followed by a negative verb (commonly ある's negative, ない).

E.g. 買かいたいけど、1円えんもない。
"I want to buy it but I don't have even one yen."

By following a noun that isn't a quantity, ～も～ない can also be used to say that "X also is not Y".

E.g. これはバナナではない。リンゴでもない。
"This isn't a banana. It isn't an apple either."

Summary

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  The ～も～ない pattern can be used to express that an amount "doesn't even reach X value"

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  When it follows a noun other than a number or quantity, ～も～ない expresses that "X also is not Y"