Book 3 Chapter 6

Question 1

Noun + の + ために
verb (Dic. form / NAI form) + ために
Pre-nomimative + ために

Answer 1

For the sake/purpose of
In order to do/not to do
For (this, that, etc.) reason
Nouns are followed by の

Question 2

~か(どうか) + verb
Option 1か + option 2か

Answer 2

Whether (or not)
Plain form before か, だ is omitted

Question 3

Sentence (plain form) + じゃない

Answer 3

speaking, casually looking for agreement. Compliment
Plain forms ,なadj and nouns are not followed by な or の

Question 4

~なんか

Answer 4

~and etc.
colloquial など、follows nouns

Question 5

-なきゃ / -なくちゃ (いけない / ならない)

Answer 5

Have to do
Spoken, interchangeable

Question 6

Drop い and replace with さ
Add さ

Answer 6

Forming nouns from adjectives
Not all な adjectives can be changed to ~さ

Question 7

Word indicating WH question + plain form + か

Answer 7

Specific answer to WH question. Plain form (no だ after な adj) or nouns followed by か