tense agreement in adverbial clauses

Hi Seloc,

It's better if you try first to write some sentences with adverbial clauses, and then we can see what kind of problems you are having. OK?

Best wishes, Clive

for example ;

since the advent of the coin, the fiscal system has changed very much.

once ,although , when ,while ,so that

tense agreement is highly important subject in adverbial clauses.

when ı was a student at high school, we could make a comprehensive research on the mammals.

that clause is correct.  but in time clauses, reason-effect clauses and contrast clauses don't need tense agreement every time.

Although you are a member of this assosication, you were dismayed or fired by council yesterday.

As you didn't call me before, we can't participate in the meeting on time.