Donner un conseil
You could / might ask your sister. Tu pourrais demander à ta sœur.
You should / ought to walk the dog more often.
Tu devrais promener ton chien plus souvent.
You had better revise your test.
Tu ferais mieux de réviser ton contrôle.
You'd better not do it. Vous feriez mieux de ne pas le faire.
If I were you, I would wait for him.
Si j'étais à votre place, je l'attendrais.
In your position, I'd take a pen pall.
Si j'étais toi, je prendrais un correspondant.
Take my advice and see a doctor.
Suis mes conseils, va voir un médecin.
I advise you to see a doctor.
Je vous conseille de voir un médecin.
Proposer, suggérer
Would you like some apple juice? Aimeriez-vous du jus de pommes ?
What about leaving now? How about leaving now?
Et si on partait maintenant ?
Let's go now. Allons-y maintenant.
Why not go for a walk? Et si on allait se promener ?
Why don't you call her now?
Pourquoi ne l'appelleriez-vous pas maintenant ?
We could wait outside. Nous pourrions attendre dehors.
Shall I do it for you? Voulez-vous que je le fasse ?
listen!
Don't worry!
Dan: “I'm sure that I failed my test!”
Diana: “Don't worry! You can't be sure. You'd better relax now and wait for the results. Why don't we meet Emma for a drink, it will do you good…”