However, you may have heard the following:
- “Every student must bring their books to school” and “everyone must pay their taxes in Tenerife”.
These two sentences are incorrect.
In these two examples, the speaker has confused the pronoun “their”. In English it is a plural pronoun, not singular.
“Every” is third person (la tercera persona) and singular.
So the correct forms are:
- “everyone must pay his taxes in Tenerife” and “every student must bring his book to school”.