French phrase
Je suis d'accord à condition que ~.
Meaning
I agree, provided that ___.
When to use it
Shows agreement subject to a stated condition. Somewhat formal, especially in business or negotiations.
Example dialogue
Je suis d'accord à condition que vous me confirmiez cela par écrit.
I agree, provided that you confirm this to me in writing.
Entendu, je vous enverrai une confirmation écrite ce soir.
Understood, I will send you written confirmation this evening.