Using Gravityforms ? Nice !
GravityForms itself can be translated, see for instance http://wordpress.org/plugins/gravityforms-nl/
Allthough this will not translate your field label "Contact us here" into "Stuur ons hier een bericht", because it is _your_ content and not part of GravityForms itself.
Luckily we have a solution for that 🙂 When you are building a multilanguage site the best plugin is http://wpml.org and thanks to those guys .. we are able to translate our own field labels! Read all about it over here: http://wpml.org/documentation/related-projects/gravity-forms-multilingual/