53201
I was reading some online articles about Japenese Grammar and one of it's
examples were:

> 静かな人 meaning _the quiet person_

Although while I was reflectling about this phrase I was wondering if I could
use だ in this exact same phrase. For example, let's suppose I'm talking about
Erickさん, can I say:

> Erickさんは静かな人だ and in it's polite form Erickさんは静かな人です
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2017-09-11T12:33:05.257
53197
2017-09-11T13:00:45.717
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question
grammar
Would be correct to put だ in this phrase?
Yes, everything you just posted works without problems. Hopefully this will
clear things up.

When you say `静かだ` you are literally saying `is quiet` in English. The same
can be said of い adjectives. Ending a sentence with `大きい` really just says `is
big.` With adjectives, the to be verb is already built in. With い adjectives
saying です after the adjective, while grammatically correct is not always
necessary. You would add です to be polite to the listener.

When you attach the adjective to a noun, `静かな人` you no longer have the to be
verb as a closer. In fact, in these situations, you can safely assume that
there is no verb, and that the adjective + noun form a noun clause. In short,
you need a verb, and だ/です will work for you. The same will apply to い
adjectives as well.
CC BY-SA 3.0
2017-09-11T13:00:45.717
53201
2017-09-11T13:00:45.717
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53197
answer