We use every + singular noun (every person / every building etc.) meaning all the people or things in a group.
Every year they go on a five-city European tour.
We know every person in this room.
We use a singular verb after every…
Every painting in this museum is Old Master.
Every country has national currency.
Compare every and all
Every employee received a company training.
All the employees received a company training.Every country has national currency.
All countries have national currency.
Remember that we use every day (the same with every morning / night / month / spring etc.) and all day (the same with all morning / night / month / spring etc.) differently. We use «every day» meaning that something happens «on all days» (how often?). However, with «all day» we mean «the complete day» (how long?).
How often do you attend meetings? – Every day.
The meeting lasted all day yesterday.
Jason visits his parents in the country every weekend.
Jason spent all weekend with his parents in the country.
Everybody (or everyone) / everything / everywhere
Everybody (or Everyone) wants to be happy. (= all people want to be happy)
Have you got everything you need to start cooking? (=all the ingredients)
I’ve looked everywhere for my glasses, but I still can’t find them. (= in all places)
We use a singular verb after everybody / everyone / everything
Everybody needs a shoulder to cry on.
Everything counts.
Упражнения
Elementary
Pre-intermediate
Упражнения на неопределенные местоимения