Usually used at the end of a sentence, indicating resentment or complaint.
Oshirase kudasareba, byōin e omimai ni mairimashita mono o....
If only you had told me, I would have come to see you at the hospital.
Watashi ni dekiru koto deshitara, otetsudai shimashita mono o....
If there had been something I could have done, I would have helped out.
Hope this helps!
°˖ ✧◝(○ ヮ ○)◜✧˖ °こゆうきあいはら°˖ ✧◝(○ ヮ ○)◜✧˖ °