@Tom - I agree with Su.Ki. -1- Here is a link showing ne pas vouloir for refusal for question 1. http://www.french-linguistics.co.uk/grammar/translation_will.shtml Question 2 is easy. Imperfect to show a habit. Question 3 is tricky. The imperfect is reasonable. A translation class would ask students to consider the passé composé (...n'a jamais rien fait) as an alternative and to justify one choice or the other. -2- These exercises are inappropriate for the typical French class. Did they come from a translation class? -3- These exercises are very similar to English grammar exercises that I use to teach French speakers that "would" has multiple uses and that it can't be mechanically translated as the conditional of vouloir. -4- I highly recommend the grammar series "Grammaire Progressive du Français" (débutant, intermédiare, avancé, perfectionnement) by Clé International. I use this series when tutoring French to children in my bilingual city in Canada.

Well, this is as much a test of English than of French! In fact, it looks like an exercise to teach French-speaking people how English uses modal verbs rather than one to teach English speakers to use French. An interesting exercise if you're planning to become an EFL teacher, but otherwise a bit confusing. Quand même... 1. When we say 'won't' in this sense in English, we mean 'refuse to', so "Elle ne veut pas..." ( She doesn't want to) would be the most obvious translation. 2. When we use 'would' in this sense in English, it's to refer to a habit in the past. This equates to the past continuous in French. To spend is 'passer', so you'd say "Elle passait des heures..". 3. This is a combination of the two modal uses above - a habitual refusal to do anything, set in the past. I'd go for the past continuous again and say 'Il ne faisait rien". This really isn't a suitable exercise for a beginner, if you don't mind my saying. If this is an exercise that a teacher has given you, you might want to think about changing teachers.

I don't really agree with Su.Ki., except for the first and third sentences. For the second, I'd translate : "elle passerait des heures...". L'original ne dit pas : "she spent..." For the third one, I think both versions are possible : "il ne faisait rien" et "il ne ferait rien". But I agree that this isn't easy at all.

In fact I do not really support the French preliminary drafts proposed in the exercise, they are forcing unnatural answers somehow. 1/ Elle ne nettoiera pas sa chambre. (unheard = she refuses to do it). In this case I would completely omit the auxiliary and go directly for a strong negation of the verb nettoyer. 2/ Elle pouvait passer des heures à regarder par la fenêtre. In this case I would even change to pouvoir to accentuate the longing action. 3/ A chaque fois qu'ils avaient des problèmes, jamais il n'aurait fait quoi que ce soit pour les aider. Here, I suggest conditionnel mode, to emphasize the zero probability he may have helped.