Whether conditional consent makes a marriage?

❌ Objection 1 : It would seem that not even a conditional consent makes a marriage, because a statement is not made simply if it is made subject to a condition. But in marriage the words expressive of consent must be uttered simply. Therefore a conditional consent makes no marriage.

❌ Objection 2 : Further, marriage should be certain. But where a statement is made under a condition it is rendered doubtful. Therefore a like consent makes no marriage.