French phrase
Je maintiens que ~.
Meaning
I maintain that ___.
When to use it
A firm assertion of an opinion or position. It is somewhat formal and assertive, often used in debate.
Example dialogue
Je maintiens que la stratégie actuelle est la bonne.
I maintain that the current strategy is the right one.
D'accord, mais pouvez-vous l'étayer avec des chiffres ?
I agree, but can you support that with figures?