Thank you very much for all your help :up::up:, I read back through the thread- I understood the last examples , and I read the previous ones again. However, I think that "Understand" to me means "sounds natural", and I doubt I really understand the grammatical concepts. I think I see my problem now...
I can't really identify the subject!
1b. "If there is something I know", just that part. "Is" and "know" are the verbs, and the subject.... is... something or I? The fisrt time I saw this sentence, I thought that "something I know" was the subject. I say this because the "something I know" is what I'm talking about, despite the fact that there are "two" "parts": "something" and "I". Because in that case, "something I know", has a verb, which is "is".
I tried translating that part to spanish... "Si hay algo que yo sé"...and I can't identify the subject, even in this case. :-?:-?:-?:-(
Honestly, I think this specific sentence has caused me trouble, because I've understood all the other ones you have showed me. In fact, if I omit the "it", none of the examples you have used make sense to me at all! but the "if there is something I know" sentence is the one I can't seem to understand. :-? Well, that's partially true. Using the "it is" sounds more natural to me now, but I can't really understand the grammatical concept behind the "it is" as I said before. I normally just say what sounds okay to me.
And...
2.- "Whatever he's planning":.. I see the verbs "is" and "planning", and as for a subject, I see "whatever" and "he". Why is "whatever" the subject here...? What is "he's planning" then?
Why, in this case, can I use both "is" and "it is"?? Is it because of the clauses? I mean, can "Whatever he's planning" be both a complete and incomplete clause?
I know this is going to sound a bit funny, but :
"Whatever he's planning". Should the question be: "What or who is he planning?" or "what is being planned"? What happens to the "he" then?
I'm really sorry if I'm a bit slow... I tried reading my grammar books and the internet, but I can't find an answer.