思う, 想う, 念う, 憶う, 懐う, 惟う, おもう
Conjugated: 思っていた
Godan verb, Transitive, 想う has connotations of heart-felt
1. to think, to consider, to believe, to reckon
2. to think (of doing), to plan (to do)
3. to judge, to assess, to regard
4. to imagine, to suppose, to dream
5. to expect, to look forward to
あすは天気だと思う。
が
Particle
1. indicates sentence subject (occasionally object)
2. indicates possessive (esp. in literary expressions)
Conjunction
3. but, however, still, and
after the volitional form of a verb
4. regardless of, whether (or not)