日本語をクリックすると英文が表示されます。まずは自分で英語にしてから答え合わせを。
It's hard to say; it depends on the situation.
If you don't mind my asking, could I ask you something?
Could you elaborate on that a little more?
Whenever you get a chance is fine.
In my opinion, it's a bit premature.
I'd like to ask, if it's not too much trouble.
That sounds good on paper, but I'm not sure it works.
I hope I'm not overstepping, but just one thing.
Let's take a step back and look at the big picture.
I feel bad asking this, but...
That's a line I'm not willing to cross.
This is just to be safe, so please don't take it the wrong way.