～ことから: “Based on (the fact)…”

Introduction

Why hello there! From the look in your eyes, I can tell you're eager to begin today's lesson! Without further ado, let's get started.

～ことから: Based on/from X (AKA cold, hard, facts)

構成こうせい

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  Casual form verb・い-adjectiveことから

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  な-adjective(な・である)ことから

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  Noun(の・である)ことから
  Example:
  → マイクさんはまだ寝ねていることから、昨日きのうはかなり遅おそくまで飲のんでいたと考かんがえられます。
  "Based on the fact that Mike is still sleeping, it can be thought that he was out drinking until quite late yesterday.”

Today's lesson is all about the ～ことから pattern, which is used to express "Based on X thing..." or "From X thing...", with "thing" being 「(Phrase)こと」. For ～ことから statements, the thing that we are basing our statement on should be some reality or concrete fact.