SENTENCE BUILDING SEQUENCES OFTENSES

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<b>Sentence Building - Part 4 - SEQUENCES OF TENSES</b>

Sự phối hợp các thì trong câu. Mối quan hệ thì của động từ trong mệnh đề chính và

mệnh đề phụ.

<b>IV. SEQUENCES OF TENSES</b>

<i><b>A. Main verb in the Simple Present</b></i>

<b>If the main clause is</b> <b>then the dependent clause can be</b>

Simple Present

(1) Present Progressive
(2) will, can, or may + verb
(3) Simple Past

(4) Present Perfect

(1) I <b>see</b> that Harriet <b>is writing</b> her composition.

Do you know who <b>is riding</b> the bicycle?

(2) He says that he <b>will look</b> for a job next week.

<b>I know</b> that she <b>is going to win</b> that prize.

Mary <b>says</b> that she <b>can play</b> the piano.

(3) I <b>hope</b> he <b>arrived</b> safely.

They <b>think</b> he <b>was</b> here last night.

(4) He <b>tells</b> us that he <b>has been</b> to the mountains before.

We <b>know</b> that you <b>have spoken</b> with Mike about the party.

<i><b>B. Main verb in the simple past</b></i>

<b> If the main clause is</b> <b> then the dependent clause can_be</b>

Simple Past (1) Past Progressive or Simple Past (2) would, could, or might + verb

(3) Past Perfect

(1) I <b>gave</b> the package to my sister when she <b>visited</b> us last week.

Mike <b>visited </b>the Prado Art Museum while he <b>was studying</b> in Madrid.

(2) He <b>said</b> that he <b>would look</b> for a job next week.

Mary <b>said </b>that she <b>could play</b> piano.

(3) I <b>hoped</b> he <b>had arrived</b> safely.

They <b>thought</b> he <b>had been</b> here last night.

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EXAMPLE

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sentences.

 Astronomers / predict / sun / die / about ten billion / year.

_

 Though we / have / very difficult examination / last night, / I /

do / very well

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