Said when there's more than one way to say something

Used to change the subject in a conversation.

Used when saying something that is almost the opposite of what you have just said, or that explains or emphasizes it

Used to say what appears to be true.

Used in sentences in which there is information that is in some way surprising or the opposite of what most people would expect. A synonym of "really" or "in fact"

Said to admit something.

Said right before giving news or something exciting or surprising.

As you would expect, a synonym of "obviously"

You say this before making a statement or give a strong order. A synonym of "only" or "simply"