Are there online english radio? Hi! Are there online english radio? I'm searching, especially for u.k. online radio, where radio operators speak a lot. To be more precise, radio where there are not so much music but many programs :)

Could (do) and could have (done). What's the difference between "could" and "could have"? "Could" can be the past of "can" or rather the ability to do something in the past , but "could have (done/given/)? I can use the last one to express the possibility in the past? I'm really confused about it :/ Thanks

Where can i find english dictation? I'm searching for english dictation with a text to check it. I can't find anything about it, but i think it can be very very useful (especially if it's in natural speed).

What's the difference between "if" and "whether"? (Qual'è la differenza tra "if" e "between"?

I'm learning the present perfect, but i have some problems about some phrases Like... I'm learning the present perfect, but i have some problems about some phrases. In the net phrase, i'm writing to a friend and talking about his journey. "i know Prague is a part of a "magic triangle" with London and Tourin, so i think you found a lot of shop about magic or something similar". I've used "found" but not "have found". Is it correct? Why? (and...above is correct the use of "i've used"? :D) Thanks!