Ingread
Маленькая_Дрянь
Sorry, while speaking we neither build sentences nor construct them but say something.
I don't think  it's correct to use 
have towhen you give instructions. 
Should is better.
to have trouble - no article.
I just noticed..... Present Perfect is used with the word 
just
But not with 
just now I've just noticed.
My teacher has given me it. When we speak about the origin of sth we should use Pst Simple 
My teacher gave it to me.