This document discusses the main word classes in English - nouns, verbs, adjectives, and adverbs. It notes that nouns are the most common type of word, followed by verbs, with adjectives and adverbs being less frequent. Verbs are a main part of sentences and questions, while adverbs modify adjectives, verbs, and other adverbs to express aspects like time, place, manner, and degree. The document also notes differences in present perfect tense usage between American and British English.

3. • English has four major word
classes: nouns, verbs, adjectives
and adverbs.
• They have many thousands of
members, and new nouns,
verbs, adjectives and adverbs
are often created.
• Nouns are the most common
type of word, followed by verbs.
• Adjectives are less common and
adverbs are even less common.
• Verb is one of the main parts of a
sentence or question in English.
• Adverb a word or phrase that
modifies or qualifies an adjective,
verb, or other adverb or a word
group, expressing a relation of
place, time, circumstance,
manner, cause, degree, etc.
(e.g., gently, quite, then, there ).

4. • Speakers of American English
generally use the present perfect
tense (have/has + past participle) far
less than speakers of British
English.
• In spoken American English, it is
very common to use the simple past
tense as an alternative in situations
where the present perfect would
usually have been used in British