Il faut de l’argent pour faire cela.
You need money to do that.
Il vous le faudrait pour quand?
When do you need it for?
Il t’en faudrait combien?
How many (or much) do you need?
Il me le faut absolument.
I absolutely must have it.
Il faut du temps pour faire cela.
It takes time to do that.
Il faudra lui dire.
We’ll have to tell him.
Il faut voir!
We’ll have to see!
Il faut que je parte!
I must go!
Il a fallu le faire.
We had to do it.
Il va falloir le faire.
We’ll have to do it.
I must phone my mother.
Il faut que j’appelle ma mère.
S’il le fallait.
If necessary.
Je le ferais s’il le fallait.
I’d do it if I had to.