ちょっと込み入った話がある。の英語

I have a complicated matter I want to discuss with you.

I need to talk to you.

I have something to tell you.

There was a momentary pause [break] in the conversation.

Milady, may I have a word with you?

By the way, I have something to tell you.

There's lot of things to talk about.

I'd like to talk with you in private.

I have something to talk about.

There was a break―a pause―in the talk.

I have a word or two to say on that matter [about it].

It just might be short notice.

I've got an attractive proposition for you.

Can we talk in private?

There was a momentary pause in the talk.

Let's talk soon.

Can I speak with you a moment?

I interspersed the talk with some lighter topics too.

There are objections to that arrangement

There are two words to that bargain.

Excuse me for interrupting you.

Pardon me for interrupting you.

I'm sorry to disturb you while you're talking.

I'm sorry to interrupt you while you're talking.

I'm sorry to interrupt you.

Pardon me for interrupting.

I'm afraid the line is busy.

I'm sorry, your line is busy.

I can't swallow the story

The story is rather hard to swallow.