Do you have a lousy French accent?
Never fear, it's better than mine. What we need is a victim, a native speaker, who will type whatever we say. Someone who never tires and never complains. Someone who is poor at interpreting foreign accents.
Someone like your iPhone.
Here's the trick for an English speaker:
- In Settings, General, International, Keyboards enable French (or Chinese, English, etc) keyboard.
- Go to an app like Notes. Tap world icon to switch to French keyboard.
- Tap microphone icon and dictate your French phrases. Watch the iPhone get them completely wrong. Keep practicing until they come out right.