may be or perhaps? Hi to everyone! Who can help me to understand what is the difference from "may be and perhaps "? Can I use both indifferently? Thanks in advance!

you gotta be stronger Hi to everyone! Who can explain to me what is the difference between: "you gotta be stronger" and "you have to be stronger"? Where does "gotta" come from? Thanks in advance.

to rise or to get up? Hi to everyone! Who can explain to me the difference between to rise and to get up? In Italian we translate both: alzarsi. Thank you in advance!

the house keys or the keys of the house? Hi, is there anyone who can tell me when have I to use preposition of, for example: the car tires or the tires of the car? House keys or the keys of the house? I'm a bit confused...

a piece of advice or an advice? Hi to everyone! Who can explain to me what is the difference between a piece of advice and an advice? When have I to say "a piece of"?

frustration Hi to everyone! I have a problem: I've been practicing English since last November, I write, read, watch English movies with subtitles every day, but my understanding skills are still scarce! Also my vocabulary is limited: I can't find the right word at the right moment! It's soul destroying! What have I to do, to keep high my motivations?

big or great? I think that it's a stupid question, but I'm confused on the use of these two words: what is the difference? A big problem or a great problem? Is it the same?

present continuous or simple future?

Hi, is there anyone who can help me? I'm confused about the use of the future in english: if I want to say for example: next Wednesday a friend of mine (to come) at my home, how can I translate? Next Wednesday a friend....is coming at my home or will come at my home? I studied that when an action is planned in an exact future, they use present continuous. But I'm not sure....