since+[past tense]

#1 (**permalink**) 22-Sep-2005, 22:31

Dear teachers,

I'd like to use the following sentence in a past context:

# They have been successful ever since they opened for business.

I think I have to change have been to had been. But I don't know what I should do with opened. Can I change it to had opened? If no, why?

I will appreciate your help, thank you in advance.

**Tdol** · #2 (**permalink**) 23-Sep-2005, 05:18

Why not use 'since opening'?


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