When you burp, cough etc.
You can simply say
When you fart
If you happen to fart when people are around.
Oops! That was me.
When you sneeze
You can say
When someone sneezes, it’s polite to say “Bless you” or “God bless you” and then the person who sneezed would reply with “Thanks.”
When you break or drop something accidentally
The commonly used interjection are:
You can also say
I’m so clumsy
I can’t believe I did that!
Oh no, not again
I’d like to pay for it
When you forget some vital information
You can say
Sorry, I’m not able to recall it at the moment.
Sorry, I’m drawing blank here.
Oops, I am totally blank.
Or you can ask your colleague or friend for help
Could you help me out?
Let me ask my friend about it
You could also say
Let me check my notes
Let me check my schedule
Let me get back to you on that
When you forget somebody’s name
If someone has recently introduced himself/herself and you forgot the name, you can say
I’m sorry, I didn’t catch you name.
I’m sorry, what was your name again.
If you meet somebody after a long time, you are not able to recall name
I’m so sorry but I’ve forgotten your name.
This is so embarrassing but I can’t seem to remember your name.
I’m terrible with names.
I’m really bad at remembering names. Sorry
Sorry, I’ve lousy memory.
When you make other embarrassing mistake
You can use these expressions:
I can’t believe I did it again.
I can’t believe it happened again. Sorry
I don’t know what I was thinking
I’m having a terrible day.
Today is not my day.
What I meant to say was…….