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Be as an ordinary verb
Be is used both as a principal verb and as an auxiliary verb.
Be as a principal verb
Be and its forms (is, am, are, was and were) are usually used to link the subject with a following word.
To express a command or request
Be can be used to express a command or request.
Special uses of Be
Be is used in a number of expressions about physical feelings (hunger, thirst etc.) and physical conditions (age, size, colour etc.).
Be as an auxiliary verb
With the Present Participles
Be is used with the present participles of verbs to make the present and past progressive tenses.
With the Past Participles of Transitive verbs
Be can combine with the past participles of transitive verbs to form the passive voice.
Be + infinitive
Be can be followed by a to-infinitive. This structure is used to talk about plans and arrangements.
Be + infinitive can also be used to give commands or orders.
Be + perfect infinitive
A perfect infinitive (to have + past participle) can be used after be to show that a planned event did not happen.
Be + passive infinitive
Be+ passive infinitive (to be + past participle) is often used in notices and instructions.
|Category: Primary auxiliary verbs. Modal auxiliary verbs | Added by: Teacher_Koce (2015-11-29)|
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