A. not + anybody/anyone | nobody/no-one (for people)
There isn't anybody in the room.
There is nobody in the room.
anybody = anyone | nobody = no-one
• There isn't anybody in the room.
• There is nobody in the room.
A: Who is in the room?
B: Nobody. / No-one.
A. not + anything | nothing (for things)
There isn't anything in the bag.
There is nothing in the bag.
• There isn't anything in the bag.
• There is nothing in the bag.
A: What's in the bag?
B: Nothing.
B. nobody = not + anybody | nothing = not + anything
nobody = not + anybody (or anyone)
• I don't know anybody here.
• nobody = not + anybody
• I'm lonely. I've got nobody to talk to.
(= I haven't got anybody)
• The house is empty. There is no-one in it.
(= There isn't anyone in it.)
nothing = not + anything
• I can't remember anything.
• nothing = not + anything
• She said nothing.
(= She didn't say anything.)
• There's nothing to eat.
(= There isn't anything to eat.)
C. Use at the beginning or alone
You can use nobody/no-one/nothing at the beginning of a sentence or alone (to answer a question):
• The house is empty. Nobody lives there.
(not 'Anybody lives there')
• Nothing happened.
(not 'Anything happened')
• 'Who did you speak to?' 'No-one.'
• 'What did you say?' 'Nothing.'
D. Remember: negative verb + anybody/anyone/anything
positive verb + nobody/no-one/nothing
• He doesn't know anybody.
not 'He doesn't know nobody.'
• Don't tell anybody.
not 'Don't tell nobody.'
• There is nothing to do in this town.
not 'There isn't nothing.'
anybody/anyone → nobody/no-one
I don't know anybody here. → Nobody knows me here.
There isn't anyone at home. → No-one is at home.
anything → nothing
There isn't anything in the bag. → There's nothing in the bag.
I can't remember anything. → I remember nothing.
Used at the beginning
Nobody came. = No-one came.
Nothing happened. = Nothing was said.
Answers to questions
'Who did you meet?' → 'Nobody.' or 'No-one.'
'What did you buy?' → 'Nothing.'