Use of : " Despite " & " For " & " Since "
Despite
Despite expresses a contrast between two things. It is prepositional expressions.
Examples
I love her despite her faults.
The young men said that they would do it despite all of the difficulties.
Despite being a millionaire, she lives in a very small flat.
Despite her young age, she did a very good job.
She still loves his despite the fact that he left him.
For
We use FOR to talk about a length of time, a period of time.
Examples
I have worked here for 8 years.
You have played football for ten years.
We have taught at this school for a long time.
He has been a student for eight years.
They've been married for 30 years.
She has been in prison for 6 months.
I haven't been on holiday for ages.
Since
We use SINCE to talk about a point in the past, a specific point in time.
Examples
He has lived here since 1993.
They have been at the hotel since last week.
I haven't ridden a horse since I was 9.
You have worked here since you left your school.
I haven't been on holiday since last year.