The translation for this statement is dependent on the meaning of "do it".
If you mean "do it" as in "perform the previously described task" or "make something" or "complete something" (e.g. Do you want to eat now? / Yes, I want to do it.), the translation is "Je veux le faire".
If you mean "do it" as in the slang form of asking somebody to sleep with you, the French translation for "I want to do it" would be "Peut-on se coucher?" if you wanted to be gentle (English equivalent: Would you like get it on?) or "Je veux coucher avec toi" if you want to be more brusque (English equivalent: I want to sleep with you.).
I want her is 'je la veux' in French.
How do you say They want to in French
What I want to be ... is 'ce que je veux être' in French.
you say it in french:"je ne veux rien".
if you want to say "you are" you say "vous êtes" but if you want to say "and you" you say "et vous"
You can say "Je veux faire caca" in French to express that you want to poop.
To say "brown" in French, you would say "marron."
You say jjduure djudjjueh
you say it "J'aime". Example:if you want to say "I like the flowers",in French you will say it"J'aime les fleurs".
Saying hello in french is Bonjour
je voudrais
You say 'que voulez-vous?'