- Can you explain . . .
- Can you tell me why . . .
- Why . . .
- What happened . . .
- Well, . . .
- Let me explain.
- Let me tell you why . . .
- Here’s what happened:
- There’s a (good) reason for this:
- The reason is . . .
- I’m sorry. I can’t tell you that (right now).
- Can I get back to you on that?
- I’ll explain (a little) later.
- We’ll come to that later.
- We’ll get to that in a few minutes.
- Can we save that until later?