“I’m just starting to design a website” does imply ongoing action, but not necessarily that you are doing it right this second. Partly this is because the reader/listener knows what you are doing right this second; you are writing/speaking that sentence.

Many similar idioms exist to the name of their phrases. How does the statement “I am currently writing a novel” can mean that the speaker has an idea for the same, maybe a chapter or two or an outline, but probably hasn’t actually written anything for weeks, months or years? This goes back to an old stereotype of a kind of intellectual that thinks he’s better than he’s, that “is currently writing a novel” and has been on for twenty or thirty years.

If either John or Joe are not in the room (the second is true) they appear in the other room because their boss is not there. Apparently Joe is more or less in the room.

When John and Joe are not in the room, the second is true only if they are not.

What are the sentences for “Joe in the room, John not in the room”?

When the third sentence comes out, the word literally means one of them is in the room but the other is not. I was so angry with my brother and I had to keep my daughter and others away. Is it possible to have both been in the room with great affections? It is common, however, for people to accept this sentence as true if they both are not in the room.

This sentence is logically identical to the second sentence. It is true only if John and Joe are in the room.