Page 418 - Basic Japanese

And note that -te wa is often shortened to -cha, -de wa to -
ja.

Sore tsukatcha dame da yo.

You are not allowed to use that.

Amari o-sake o nonja ikemasen yo.
You should not drink too much.

Manga bakari yondecha dame desu yo.
You should not just read comic books.

8.8. Denial of obligation

To deny obligation or to say ‘someone NEED NOT or DOES
NOT HAVE TO do something,’ you use the gerund of the

NEGATIVE ADJECTIVE -(a)nakute + mo + ii. The meaning of this
expression is something like ‘even not doing it (even if

someone doesn’t do it), it’s okay.’ So, to say ‘You don’t have
to read it,’ you say Yomanakute mo ii desu. If you want to ask

‘Do I have to take the medicine?,’ you can say either Kusuri o