used to soften requests / on the other hand / particle used to express the turn of somebody or something / particle used to emphasize contrast / particle used to emphasize affirmation / particle used to give additional information so the other person will be finally convinced of what you've said or asked / particle used in exclamatory sentences to add more emotion

Of course!; surely

used to express fear, worry or disappointment about something unexpected happened / still (emphasized)

used to express that something is pointless / emphasis that another matches a description

just; simply; merely

again