ever since
fixed phr..fixed phr.. starting from a specific time in the past and continuing until now. You use this to show that something has not changed since that moment.
fixed phr.. a temporal adverbial phrase indicating an unbroken duration or state originating at a specific past point and persisting to the present or a secondary reference time.
They met in college and have been friends ever since.
He moved to London in 2010 and has lived there ever since.
Ever since the new regulations were implemented last spring, the department has seen a significant decrease in administrative errors and overall processing time.
often placed at the end of a sentence or used to introduce a clause; frequently paired with the present perfect tense.
contrast with 'since' alone; 'ever' adds emphasis to the continuity and suggests that the state has been constant without interruption.
I have lived here since ever.I have lived here ever since.the word 'ever' must precede 'since' when used as a fixed phrase of duration.