Englishfor English speakers
a
Determinative
—
A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
—
A is the first letter of the alphabet.
The letter "a" comes before "b".
—
In some schools, an A is a very high grade.
Ron got an A on his earth science test.
few
Determiner
—
Few things are not many things..
very few problems are as big as this.
There are so few good books.
I can't believe how few people are here.
There are so many problems and few are easy.
of
Preposition
—
Made using.
It is a house of cards.