تويت
Since , as , for
We can use because, since, and as to express a reason for something. Normally we use because when the reason has not been mentioned previously; the reason usually comes in second place
We stayed at home because Tom was ill
If the conversation has already mentioned that Tom was ill, we normally express the reason with since or as; the reason usually comes the first place
Tom was not feeling well. Since/As Tom was ill, we stayed at home
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We can use for to express purpose or reason with different structures. We can use it with a noun to express a purpose
I went to the shops for some cheese
We stopped for a drink
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When the action and the purpose involve different people, we express this with for and a noun or pronoun followed by the infinitive with to
We stopped for the children to have a drink
I waited for him to finish his homework
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We can use for with a noun or an-ing form to give
the reason for a reaction
The teacher sent Jill home for cheating
My cousin was arrested for robbery
Johnson is in prison for dangerous driving
Sam won a medal for saving a young boy
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You will sometimes see for used in a way similar to because
Diane was pleased to received the books, for she was fond of reading
However, this is not common and you can always use because in these cases
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We also use prepositions due to and owing to with a noun to express a reason
Many people arrived late due to/ owing to the heavy rain
Due to / Owing to the road repairs, we had to take a different route
If we use these prepositions with a clause, we have to include the fact that
The concert was cancelled due to/ owing to the fact that the pianist had appendicitis
Note that we can use noun +be + due to+ noun
The delay was due to fog
We can not use owing to in this way
Not (The delay was owing to fog)
Here the reason happens before the action or fact