Wie sagt man VOR auf Englisch?
Wie sagt man VOR auf Englisch? It sounds like FOR, which is an English word. Aber pass auf!
When talking about when something happened, you might want to say "Vor 5 Jahren." In this case, use the English word AGO. For example, I took a vacation and was in Munich 5 years ago.
What would happen if you said "I was in Munich for 5 years"? That would mean that you were in Munich for a period of 5 years - that's a long time for a vacation! You see, "I was in Munich for 5 years" means "Ich war für 5 Jahre in München."

Sagt man wirklich “I was by Sascha ?”
Yes. For example:
“Where was your seat at the table?”
“I was by Sascha.” (it means “I was next to Sascha”)