YOU SAID:
i saw two people running yesterday evening
INTO JAPANESE
昨日の夕方に二人が走っているのを見ました
BACK INTO ENGLISH
I saw them running yesterday evening
INTO JAPANESE
私は彼らが昨日の夜に走っているのを見ました
BACK INTO ENGLISH
I saw them running last night
INTO JAPANESE
私は彼らが昨夜走っているのを見ました
BACK INTO ENGLISH
I saw them running last night
You've done this before, haven't you.