Ever Since Hello! what's the meaning of "ever since" and how can I use the words on a sentence/phrase? Thanks in advance! -_-

How to say "thanks for accepting me in this group" in Russian? How can I say these sentences; "thanks for accepting me in this group & I'm still beginner at learning Russian Language" in Russian?

how to use these words "알았어" & 알아요"? I want to know what's the difference between 알았어& 알아요. However, both mean "I know". But why "알았어" is often said by korean especially in movie.

how to make words such as "사다" & "살다" in future tense? both have ending consonanat "ㄹ", and as I know to make future tense in Korean we can use "을/ㄹ + 거예요" form. So, how to make those words in Korean future tense? Are there any form else to make sentences in Korean future tense?

what's the meaning of "outta" & "ain't"? How those are used in sentence?

How to use the words such as "remain and remaining" in sentence appropriately? I'm still confused about using these words. How much meanings of these words actually?

could you recommend me some nice korean pop rock bands besides great band like 부활? I like any kinds of music as long as it comfortably in my ears. Somehow I prefer rock music, and I would like to know some nice rock bands especially from South Korea. Have any idea?

which one is best way to say "now it's time for lunch!" in Korean? - 지금은 점심 시간! or - 지금은 시간 점심!