と思う => I think N5
ようと思う/ようと思っている => thinking of doing; planning to ~ N3
かと思ったら/かと思うと => just when; no sooner than ~ N2
~とおもう(~と思う)      => tend to, be about to… N4
Intent
を問わず => regardless of; irrespective of; no matter~ N2
... にと思って => To do..., to let... N2
Purpose, target
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
てっきり...と思う => surely; certainly; without a doubt N3
を[問「と」]わず => Disregarding A; Without relation to A N2
Considering, Concerning
~ようとは思はなかった => I would not think to~ N1
Beyond expectations
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles