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Tenses
The future
Modals
Be, have, do, make, etc.
Questions
Passives
Verbs: infinitives, -ing forms, etc.
Reporting
Nouns and compounds
Articles
Determiners and quantifiers
Relative clauses and other types of clause
Pronouns, substitution and leaving out words
Adjectives
Adverbs and conjunctions
Prepositions
Organising information
The 'zero' article : : Indefinite articles : : Definite articles : : Questions with like : : Question tags : : Time prepositions : : Reported Speech : : Simple passive : : Continuous passive : : Because and because of : : To, for, so that : : '-ed' and '-ing' adjectives : : Need + verb-ing : : Have something done : : Must : : Have to / don't have to : : Used to : : Wish + Past Perfect : :


Grammar and Language Use.

Understand the basic concepts of English grammar and learn English easily. If you just started learning English, you first need to know some basic rules of the language. Examples included here represent some of the problems we see most frequently.
Because and because of are both used to introduce reasons. Because is a conjunction, and is followed by a subject and verb. Because of is a preposition, and is followed by a noun phrase or verb-ing.

Because

because subject verb  
because he felt ill, he didn't go to the party
because the traffic was heavy, she couldn’t get to work on time.

Because of

because of noun phrase or verb-ing  
because of his illness he didn't go to the party
because of feeling ill
Because of the heavy traffic, she couldn't get to work on time.

Английская грамматика
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Краткий англо-русский разговорник
Confusing words
Упражнения по переводу с русского на английский
Тексты с параллельным переводом
Essays