Student or Learner
Don’t Say: “I invited all the class.”
Say: “I invited the entire class.” (More Formal)
Or: “I invited the whole class.” (More Informal)
Why is 'all the class' wrong? I really cannot get it.
Mainly because "all the" gives the idea of a number, but "entire/whole" doesn't.
I invited all the people in my class.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.