Student or Learner
Just a little matter...
Everyone has his/her/their own problems.
Everybody has his/her/their own problems.
As far as I know both everyone and everybody are singular so... I'm not convinced that I can use their in such a case.
On the other hand, I don't think it's correct to use his or her for boys&girls together.
However, one of them should be right . I don't have any idea, so please, someone help me.
And here appears someone . Like...
Someone has/(have?) left her/his/their door opened.
Woah... that's a hard nut to crack for me!
If you know that you are talking about one of a group of all males or all females, then you can use his or her as appropriate. In all other cases, use 'their'. This was once considered incorrect, but is now generally accepted.
In all cases, the verb is singular.
There's also the option of rewriting or rephrasing the sentence, for example,
- Everyone has
- Everybody has
- Someone has left
her/his/theirthe door open.