1. I am sorry to interrupt you.

Oh, excuse me, I didn't know you were busy.

2. that was not what I intended to say or do.

As a kid growing up, my family grew strawberries, excuse me, grew tomatoes.

3. I did not hear you.

Which office do you work in? Excuse me?

Related vocabulary: pardon me

• not in the slightest
• not judge a book by its cover
• not know beans about
• not know beans about something
• not know from Adam
• not know if are coming or going
• not know if you are coming or going
• not know someone from Adam
• not know the first thing about
• not know the first thing about something
• not know the half of it
• not know the meaning of the word
• not know what hit
• not know what hit you
• not know where to put
• not know where to put yourself
• not know where to turn
• not know whether are coming or going
• not know whether to laugh or cry
• not know whether you are coming or going
• not know which way to turn
• not let the grass grow under feet
• not let the grass grow under your feet
• not lift a finger
• not long for this world