Language translation - Smartform

Dear readers,

Please help me out in translating a smartform from language FR (French) to EN.

I have a smartform which was initially written in FR (french) and now it needs to be translated to EN.

Please let me a full procedure to translate a smartform, including the Tcodes and the step-by-step procedure for the same.

Thanks in advance.

Regards,

Pawan.