Please correct

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. The bus was plenty of people.
  2. The bus was with plenty of people.
  3. The bus was full of people.
  4. The bus was crowded.
  5. The bus was crowded with people.
    Please correct the above sentences.
2

1 and 2 are incorrect.
The others are okay.