notadictionary.com
本日上司に説教をされたのですが、その説教の最後に…
→ “My boss gave me a lecture today, but at the very end of that lecture...”
本日 honjitsu = today (noun)
本 hon = this / genuine
日 nichi = day
上司 jō¹shi = boss / superior (noun)
に ni = by / to (particle marking the agent)
説教 sekkyō¹ = lecture / scolding (noun)
説 setsu = explain / expound
教 kyō¹ = teach / lesson
を o = (object marker particle)
された sareta = was given / received (passive form of 'to give')
さ sa = stem of suru
れ re = passive auxiliary suffix
た ta = past tense marker
ですが desu ga = but / however (polite connector)
で de = connective form of desu
が ga = conjunction (but/yet)
その sono = that (demonstrative adjective)
説教 sekkyō¹ = lecture / scolding (noun)
説 setsu = explain / expound
教 kyō¹ = teach / lesson
の no = 's / of (possessive/genitive particle)
最後 saigo = end / last (noun)
最 sai = utmost / most
後 go = after / later
に ni = at / in (particle indicating location/time)
… = ellipsis (indicating suspense or an unfinished thought)