J'aurai vs. Je serai. What's the difference?

J'aurai vs. Je serai. What's the difference?

I'm bit confused by these two examples: J'aurai sûrement un quart d'heure de retard. I will probably be fifteen minutes late. Je serai sûrement en retard d'un quart d'heure. I will probably be fifteen minutes late. If "j'aurai" and "je serai" both mean "I will", how do I know which one to use?
Asked 9 years ago
LauraKwiziq language super starCorrect answer

They don't really mean "I will," but rather "I will have" and "I will be," respectively.

J'aurai is the future of avoir - to have. So J'aurai sûrement un quart d'heure de retard literally means "I will surely have a quarter hour of lateness." Here, retard is a noun in French, so you "have" it.

Je serai is the future of être - to be. Je serai sûrement en retard d'un quart d'heure means I will surely be late by a quarter hour. Here, en retard is an adverb, so you are late.

The difference is probably easier to understand with different examples:

J'aurai du temps libre demain = I will have some free time tomorrow.

vs

Je serai là à midi = I will be there at noon.

J'aurai vs. Je serai. What's the difference?

I'm bit confused by these two examples: J'aurai sûrement un quart d'heure de retard. I will probably be fifteen minutes late. Je serai sûrement en retard d'un quart d'heure. I will probably be fifteen minutes late. If "j'aurai" and "je serai" both mean "I will", how do I know which one to use?

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