Japanese From Zero! Questions

Questions about Course 3 Lesson 13

1.	3-13	What does SAGASHITAKUNAI mean?
2.	3-13	DESUKARA　vs　DAKARA
3.	3-13	What is the difference between ITTE KARA and ITTA KARA?
4.	3-13	Negative Potential Form
5.	3-13	Can I say: EIGO TO SUPEINGO TO NIHONGO GA DEKIMASU? And explain DOKO NI vs. DOKO GA please.
6.	3-13	Is there a way to tell an active versus a passive verb?
7.	3-13	What is the difference between KAKIMASU and KAKEMASU?
8.	3-13	Which particle should I use, GA or O?
9.	3-13	Doesn't SAGASU mean "to look for"?
10.	3-13	Can you always use O before the potential verb form?
11.	3-13	Is there a specific rule about adding DESU at the end of an informal potential verb?
12.	3-13	How do you say "I can do something"?