・外は明るいけれど、もう8時だよ。もう寝る時間だ。
・カメラを持っていたならば、その光景を写真に撮れたのに。
・膝の故障がなかったならば、彼は偉大なランナーになっていただろう。
Though it is bright outside, it's already 8 o'clock. It's time to sleep.
I could take a photo of the view if I took the camera with me.
He may become a great runner if he doesn't have a problem with his knees.
