At a glance
それで starts a new sentence and shows that B is the result of A: "so", "because of that". In conversation it can also ask someone to go on with their story: "And so?"
A。それで、B。
電車が遅れました。それで、会議に遅刻しました。 The train was late. Because of that, I was late for the meeting.
How to form it
それで is a connector. It goes at the start of the second sentence.
| Where it goes | Pattern | Register |
|---|---|---|
| Start of sentence B, after A。 | A。それで、B。 | Neutral: speech and writing |
| Start of a reply, to ask for more | それで？ / それで、どうしたの？ | Conversation |
| Shortened form | で、B / で？ | Casual speech only |
The comma after それで is common but optional.