what's the difference

[allei]

hi tdol!

kindly explain breifly what's the difference between these sentences and when to use each.

a. You're very kind...
b. It's very kind of you ...

many thanks
allei

[Casiopea]

Maybe I can help.

Example b. has "It" as its subject. "It" stands for "to help out":

b. It is very kind of you to help out.
=>To help out is very kind of you.

Below, in a., the subject "You" is topic, whereas in b. "to help out" is topic:

a. You are very kind to help out.
b. To help out is very kind of you.

Hope that helps.

[gio]

clause a. can be used in everyday english (informal) whereas clause b. is more formal, you sound more polite when you use it.

[allei]

That helps a lot. Thanks.

Maybe I can help.

Example b. has "It" as its subject. "It" stands for "to help out":

b. It is very kind of you to help out.
=>To help out is very kind of you.

Below, in a., the subject "You" is topic, whereas in b. "to help out" is topic:

a. You are very kind to help out.
b. To help out is very kind of you.

Hope that helps.

[allei]

thanks gio.

clause a. can be used in everyday english (informal) whereas clause b. is more formal, you sound more polite when you use it.