Common Mistakes : Each

pronoun

.BAD: We had to answer each questions on a new page
.GOOD: We had to answer each question on a new page

: each + singular noun
.Each child was given a balloon

.BAD: Each of the nurses were very kind
.GOOD: Each of the nurses was very kind

.BAD: Each of us have a room on the top floor
.GOOD: Each of us has a room on the top floor

: each of + plural noun/pronoun + singular verb
.Each of the three children was given a balloon

.BAD: Each of us did not have an umbrella
.GOOD: None/Neither of us had an umbrella

.BAD: They have each their own problems
.GOOD: They each have their own problems