If I had known she was not coming, I would have made the reservation for four people. vs If I knew she was not coming, I would have made the reservation for four people.

Both phrases are correct, but they are used in different contexts. The first phrase 'if I had known she was not coming, I would have made the reservation for four people' is the third conditional, used to talk about a situation in the past that didn't happen. The second phrase 'if I knew she was not coming, I would have made the reservation for four people' is the second conditional, used to talk about hypothetical situations in the present or future.

Last updated: March 23, 2024 • 206 views

This phrase is correct and commonly used in English in the context of the third conditional.

"If I had known she was not coming, I would have made the reservation for four people."

This phrase is used in the third conditional to talk about a situation in the past that didn't happen. It expresses a hypothetical outcome based on a past condition.

Examples:

If I had known you were sick, I would have visited you in the hospital.
If she had told me earlier, I would have been able to help her.
If they had arrived on time, we wouldn't have missed the beginning of the movie.
If he had studied harder, he would have passed the exam.
If we had left earlier, we wouldn't have hit traffic.

Show examples from the web [+]

- Although if I had known she was that easy, may...
I never would have taken her to Brazil with me if I had known she could get sick.
If I had known she'd come, I could have waited until midnight.
No. And I would've never agreed to bang my own mom-in-law if I had known she wasn't covered.
If I had known you were coming, I would've stayed and baked cookies.
If I had known you were coming I would not have sent your sisters by Don Vito.
If I had known you were coming, I'd have saved you some poison.
If I had known you were coming, we could have all ridden over together.
I would've prepared something for her if I had known you two were coming
Would have refused his case if I had known.
If I had known that Celeste had made you choose who to help...
Now, if I had known how desperate you were...
If I had known it was harmless...
If-if I had known having a son could be like this...
If I had known, I certainly wouldn't have stayed married to Marshall Bowman.
If I had known the circumstances, I should not have intervened.
If I had known for a second what...
If I had known, maybe we could've done things differently.
Maybe if I had known my parents...
If I had known her address, I could have visited her.

Alternatives:

If I had realized she was not coming, I would have made the reservation for four people.
Had I known she was not coming, I would have made the reservation for four people.
If I had been informed she was not coming, I would have made the reservation for four people.
If I had been aware she was not coming, I would have made the reservation for four people.
If I had found out she was not coming, I would have made the reservation for four people.

This phrase is correct and commonly used in English in the context of the second conditional.

"If I knew she was not coming, I would have made the reservation for four people. "

This phrase is used in the second conditional to talk about hypothetical situations in the present or future. It expresses a hypothetical outcome based on a present or future condition.

Examples:

If I knew his address, I would send him an invitation.
If she knew how to swim, she would join us at the beach.
If they knew the truth, they would act differently.
If he knew her phone number, he would call her.
If we knew the answer, we would tell you.

Show examples from the web [+]

If I knew you were coming, I would have put on a more revealing gown.
CONNELLY: If I knew you were coming, I'd have tidied up.
If I knew you were coming, I would've set fire to the place.
If you knew I was coming, this wouldn't be an unannounced visit.
Wanted to send us a letter that she was not coming back here to rot away...
If I knew you would be coming, I would have prepared some side dishes then.
If I knew the way he was coming, I'd meet him.
If I knew she were pregnant, I wouldn't even have tried to get her out of the house.
When you asked me yesterday if I knew she was pregnant, I knew, I lied.
Madam President, I would really much prefer that this directive was not coming before us.
If I'm not coming, I'll send you a four-flush.
If I knew exactly when they're coming, my chauffeur could have picked them up.
Because if you knew they were coming, you all would have bailed.
if he knew it was coming, Bill was not shy of drawing first.
Yes, I knew she was going.
Now, see, I knew she couldn't have gotten Those identities herself.
Even then, I knew she was the one.
You know, I knew she was coming down with something.
Look, when I met Sasha, I knew she was special.
Man, I knew she'd beback at work today.

Alternatives:

If I were aware she was not coming, I would have made the reservation for four people.
Had I known she was not coming, I would have made the reservation for four people.
If I had been informed she was not coming, I would have made the reservation for four people.
If I had realized she was not coming, I would have made the reservation for four people.
If I had found out she was not coming, I would have made the reservation for four people.

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If I had known she was not coming, I would have made the reservation for four people. vs If I knew she was not coming, I would have made the reservation for four people.