since vs during

[yamini]

some where I read that it is better to use "during' rather than 'since' in the below type sentences. why? When can we use 'since' or 'from' ?

Since the past 30 years, many people have been migrated to the US
During the past 30 years, many people have been migrated to the US
From the past 30 years, many people have been migrated to the US

[sai]

U use from when it has completion time and remember it always follows by to. World war started from 1914 to 1919.

U use since to indicate that action or event is still continuing. For example- Raymonds is the fine fabrics since 1929- which mean it still the fine fabrics no matter what.

[Sai]

U use from when it has completion time and remember it always follows by to. World war started from 1914 to 1919.

U use since to indicate that action or event is still continuing. For example- Raymonds is the fine fabrics since 1929- which mean it still the fine fabrics no matter what.

Usage of during

DURING

Use 'during' with a noun to express 'when' something happens:

during class
during my vacation
during the discussion

[yamini]

Thanks for your nice explanation.

In this case which of the following statement is correct?


Since the past 30 years, many people have been migrated to the US
During the past 30 years, many people have been migrated to the US

[sai]

I would go for sentence with since as the trend continues -clue have been.

[StaceyKoprince]

A correct sentence would be "During the past 30 years, many people have migrated to the US."

Here's a brief discussion of "since": http://www.englishclub.com/grammar/verbs-m_for-since.htm

And another for "during": http://www.english-the-easy-way.com/Prepositions/Prepositions_for_while_during.htm