Can variations affect the validity of a marriage?

I’ve been to a few Catholic weddings where parts were added or omitted, and it made me wonder if this could affect the validity of the marriage.

For instance, at one wedding, the priest asked the couple, “Do you come to enter into marriage without any major reservations?”, adding “major” with emphasis.

At another, the priest did not ask the three questions (coming freely, lifelong commitment, and accepting children) before the couple exchanged vows.

Could either of these, or any other variations of the marriage rite, affect the marriage’s validity in any way?

The Catechism states:

1623 … the spouses as ministers of Christ’s grace mutually confer upon each other the sacrament of Matrimony by expressing their consent before the Church. In the tradition of the Eastern Churches, the priests (bishops or presbyters) are witnesses to the mutual consent given by the spouses, but for the validity of the sacrament their blessing is also necessary.

So as long as both spouses express consent in the marriage, and have the marriage blessed by a priest, deacon, or bishop, it is valid.

Changes to the liturgy, however, are illicit, but they do not effect the validity of the sacrament.

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