にひきかえ => In contrast to A N1
Comparison/ Exchange
[向「む」]け => Made for A, intended for A N2
Adjectival, Descriptions
に[難「むずか」]くない => It's not hard to A N1
Adjectival, Descriptions
だろうと[思「おも」]う => I think probably A N4
Sentence Endings
ようと[思「おも」]う => I think I will A N4
Causative, Passive, Volitional
[必要「ひつよう」]はない => It is not necessary for A to be done N2
Needs, Requirements
かと[思「おも」]ったら/かと[思「おも」]うと => Athough A, B., As soon as I noticed A, B, almost immediately after A, B N2
Time, Situation
ずにすむ => Not doing A will suffice; Can get by without doing A N1
Need/Requirements
と[思「おも」]いきや => Even though A (was thought/expected), different result B N1
Contrast/Surprise
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles
へ => Go to N, head to N , Often followed by verbs like 行く/いく, 来る/くる, 向かう/むかう… N5
Particles