I'd like to ask whether it is correct to use both of the forms below:
"I'd like to try the dress on."
"I'd like to try on the dress ."
Thanks in advance!
Both are fine. If you are holding the dress, you would say "this dress" not "the dress."
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.