1.Words and Phrases

I. There are eight word classes in English, sometimes called “parts of speech”.
a. Verb:  be, bring, decide, look, must, take, write
b. Noun: book, Milan, time, sadness, cup
c. Adjective:  small, different,natural ,low
d. Adverb:  badly, often, probably, soon
e. Determiner:  a, every, m, the, this
f. Pronoun: Him, myself, something, you
g. Conjunction: and, because, but, if
h. Preposition: at, by, to, with


II. Some word belong to more than one word class. Here some examples.
Promise (verb):
- I promise I won’t be late
Promise (noun):
- I won’t be late and that’s a promise

Human (noun):
- When did humans first land on the moon?
Human (adjective)
- We’re defending our human rights

III. There are five kinds of phrase
A verb phrase has an ordinary verb.
There can also be one or more auxiliaries in front of the ordinary verb.
-->    was, arrives, can see, don’t know, have been thinking

A noun phrase has a noun.
There can also be a determiner and/or an adjective in front  of the noun
-->    music, some money, a good game

An adjective phrase is often just an adjective.
There can also be an adverb of degree in front of the adjective.
-->    great, very old, most ridiculous

An adverbe phrase is often just an adverb.
There can also be an adverb of degree in front of the adverb.
-->    sometimes, very carefully

A prepositional phrase is a preposition + noun phrase
-->    on the road, by Friday, for a long time