Sentence Practice 5/25/2016

I think tonight I'm going to do several groups of shorter sentences, kind of in a "drill" manner so I can get used to using certain grammar concepts I've recently learned.

I'll start with the の particle being used to request an explanation. Again, when it comes after a noun or na-adjective, な is required beforehand. If だ or です come afterward, the の is shortened to ん.

学生なの？
He's a student?

犬なの？
It's a dog?

新しいの？
It's new?

リーさんの本なの？
It's Lee's book?

大好きなの？
You really like it?

簡単なんだ？
It's easy?

秘密なんだ？
It's a secret?

お父さんなんですか。
That's your father?

忙しいんですか。
You're busy?

難しいんですか。
It's difficult?

Now I'm going to practice state of being conjugations on various words. Again, this is divided based on whether the word is an i-adjective or a noun or na-adjective.

猫
猫じゃない
猫だった
猫じゃなかった
Cat
Not a cat
Was a cat
Was not a cat

眠い
眠くない
眠かった
眠くなかった
Sleepy
Not sleepy (oh no!)
Was sleepy
Was not sleepy

赤ちゃん
赤ちゃんじゃない
赤ちゃんだった
赤ちゃんじゃなかった
Baby
Not a baby
Was a baby
Was not a baby

子犬
子犬じゃない
子犬だった
子犬じゃなかった
Puppy
Not a puppy
Was a puppy
Was not a puppy

嬉しい 「うれしい」
嬉しくない
嬉しかった
嬉しくなかった
Happy
Not happy
Was happy
Was not happy

憤ろしい　「いきどおろしい」
憤ろしくない
憤ろしかった
憤ろしくなかった
Angry
Not angry
Was angry
Was not angry

暇
暇じゃない
暇だった
暇じゃなかった 
Free (meaning not busy)
Not free
Was free
Was not free

This post is getting kinda long, so I may do a second one with practice for the other grammar points.