The default questions in your application form is already translated into all supported languages by default.
For any custom questions on the application form, and all your registration, re-enrollment and other forms, you can translate the form by going to:
Settings > Manage Forms > Custom Forms> [Your Form Name] > “Translate”.
You will then be asked to select the language into which you are translating:
You will then be given a space into which to copy and paste or write the translations for each field and the associated options: