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Sagot :
Answer:
There are two options that indicate a progressive tense:
be + verb + -ing
have + been + verb + -ing
Explanation:
A progressive tense is used to talk about about an action that is taking place at the moment of speaking, or to indicate that an action lasted or will last a while.
The structure be + verb + -ing can indicate both the Present Continuous/Progressive and the Past Continuous/Progressive. What determines if it is past or present is the verb "to be". Examples:
- He is organizing the pictures.
- He was organizing the pictures.
The structure have + been + verb + -ing can indicate both the Present Perfect Continuous/Progressive or the Past Perfect Continuous/Progressive. Here, what determines if it is past or present is the verb "have". Examples:
- I have been trying to call him since yesterday.
- I had been trying to call him since the day before.
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