usually written using kana alone  conjunction 

• in line with this, therefore, consequently, so, such being the case, in that regard, in this connection

polite language  usually written using kana alone  conjunction 

• in line with this, therefore

popular  JLPT N3  usually written using kana alone  conjunction  particle 

• by the way, incidentally, well, now
• even if, no matter (what, where, how, etc.)

usually written using kana alone  conjunction 

• otherwise, or else, if not

usually written using kana alone  conjunction 

• if not so

rarely used kanji form  usually written using kana alone  conjunction 

• however, nevertheless, but, and yet, whereas, while, on the other hand

popular  rarely used kanji form  JLPT N3  usually written using kana alone  conjunction 

• but (still), and yet, nevertheless, even so, notwithstanding

popular  rarely used kanji form  usually written using kana alone  conjunction 

• if that's the case ..., if so ..., that being the case ...

JLPT N1  usually written using kana alone  conjunction 

• therefore, for that reason, so, because of that

popular  rarely used kanji form  JLPT N3  usually written using kana alone  conjunction 

• so, accordingly, now, then, thereupon, therefore