"No sabemos exactamente cuando ocurrió."

Translation: We do not know exactly when it occurred.

[pyramids44]

Ugh, I put "didn't know" instead of don't know, forgetting that the past tense of saber is irregular, i.e: supimos.

[jfGor]

Yes,me too! I know it in my head but I type out present tense because I am so use to it. I am getting a little bit better, tho

[rwmorris]

Yep, I think that got all of us.

[irene121212]

Duh... I did the same

[stfods]

I just can't stop writing ocurrió with "cc" instead of "rr". :\

[SusannaEDavis420]

I keep typing it with two cc's, too!

[SD-77]

We're getting into a crime novel again...

[kitntodd]

Why is there no "lo" here? Like "cuando lo ocurrió"?

[erherr]

"Lo" is a direct-object pronoun, i.e. the receiver of the action. Because the thing is question is doing the occurring, you would need a subject pronoun; however, the subject pronoun for inanimate objects is often omitted in Spanish, leading to the phrase as it is written.

[JoshDavies]

Shouldn't it be "cuándo", since this is an indirect question? I am having trouble working out when to use the accents...

[erherr]

I believe it should be "cuándo" as well. It serves as a pronoun in this sentence. Otherwise, it would mean something like "we do not exactly know after it happened."

[quverty]

"we don't know exactly when it happened" - what's wrong with that?

[kalukuhan]

I think it should be OK.

[ElliotNovak]

Is it normal in el mundo hispanohablante to combine the end and start of adjacent words with the same syllables, such as "cuando occurio" ?

[erherr]

It is quite common, especially in quick speech.

[edzanaly.r]

The voice messed me up, all i heard was "curio".

[zsparc1]

I typed "happened" instead of "occured" and it marked ir wrong...

[mary914730]

I used 'happened' instead of 'occurred' & got dinged for it.

[DanielS19]

I typed it in exactly with the exception of the accents. suddenly it isn't forgiving if this?

[SydneyBarn10]

Typo

[njoysmoker]

Thats what I wrote!

[Radosuaf95]

why it cant be "when it happened" instead of "when it occuried"