From vs For with year

Question

Which is correct / acceptable usage

I pride myself associated with CompanyX from past 3 years.

OR

I pride myself associated with CompanyX for past 3 years.

OR something else?

Answer 1

Use:

I pride myself for being associated with CompanyX for the past 3 years.

for indicates a period of time.

If you were to use from (which indicates a starting time), then:

I pride myself for being associated with CompanyX from 2013 to 2015.