Hello,

you can create some forms with the same fields but with different names of the fields. 

then in each page for each language you should add the corresponding form

for example,

You have to create each form for each language. Go in admin: Contact -> Contact Forms. Create the new form, translate all texts and copy the shortcode of the corresponding form.

For each page you have to create separate pages. So, go to the page with new language and insert the copied shortcode.

thanks!