Söylenti dün internette yayılmış.

Yayılmış comes from the verb yayılmak, which means to spread.

It can be broken down like this:

• yay- = spread
• -ıl- = makes it yayılmak, an intransitive/passive-type form meaning to spread rather than to spread something
• -mış = the inferential / reported past

So yayılmış means something like:

• apparently spread
• is said to have spread
• seems to have spread
• sometimes simply has spread, depending on context

In this sentence, Söylenti dün internette yayılmış, the idea is that the rumor spread yesterday on the internet, but the speaker is presenting it as learned indirectly or inferred.

These forms express different things:

• yaydı = spread something
  This comes from yaymak, the transitive verb. It needs an object.
  Example: Haberi internette yaydı. = He/she spread the news on the internet.

• yayıldı = spread
  This comes from yayılmak and is the direct past tense.
  Example: Söylenti internette yayıldı. = The rumor spread on the internet.

• yayılmış = apparently spread / is said to have spread
  This is also from yayılmak, but with -mış, which adds the inferential/reported meaning.

So yayılmış is used because the sentence is not just about a past event, but about a past event presented as something the speaker learned indirectly.

The ending -mış is very important in Turkish. It often shows that the speaker:

• did not directly witness the event
• heard about it from someone else
• is inferring it from evidence
• is presenting it with a slight sense of apparently, reportedly, or it seems

So:

• Söylenti dün internette yayıldı. = The rumor spread on the internet yesterday.
  This is a straightforward past statement.

• Söylenti dün internette yayılmış. = The rumor apparently spread on the internet yesterday. / I hear the rumor spread on the internet yesterday.

English usually does not mark this distinction grammatically as clearly as Turkish does.

Not necessarily. It does not always mean doubt.

It mainly means the information is indirect rather than directly witnessed. That can include:

• reported information
• later discovery
• inference from evidence

For example, if you wake up and see that a rumor is everywhere online, you might say Söylenti internette yayılmış because you are concluding that it spread, not because you watched it happen.

So the nuance is more about source of knowledge than simple uncertainty.

Because the subject is third person singular: söylenti = the rumor.

In Turkish, third person singular verbs often have no extra personal ending beyond the tense/aspect marker.

So:

• ben yayılmışım = I apparently spread / it seems I spread
• sen yayılmışsın
• o yayılmış
• biz yayılmışız
• siz yayılmışsınız
• onlar yayılmış(lar)

Here, söylenti is singular, so yayılmış is enough by itself.

This is a very common question.

The verb yayılmak often looks passive historically or structurally, because it is related to yaymak (to spread something). But in modern Turkish, yayılmak is very commonly used as an intransitive verb meaning to spread.

So in this sentence:

• söylenti = subject
• yayılmış = has spread / apparently spread

It is not best understood as the rumor was spread here. It is better understood as the rumor spread.

If you wanted a clearer passive idea like was spread by someone, Turkish would often use a different structure or include an agent if needed.

Internette means on the internet.

It is made from:

• internet
• -de / -da / -te / -ta = the locative ending, meaning in / on / at

So:

• internet + de would be the basic idea
• but because internet ends in the voiceless consonant t, the suffix becomes -te
• therefore: internette

This is due to consonant harmony/devoicing in Turkish.

So:

• evde = at home
• okulda = at school
• ağaçta = on the tree
• internette = on the internet

Because -mış shows that the event is in the past, but dün gives the specific time: yesterday.

So the sentence contains both:

• past time from -mış
• exact time reference from dün

This is completely normal in Turkish, just as in English:

• The rumor spread yesterday
• The rumor apparently spread yesterday

There is no conflict between dün and -mış.

The sentence is:

Söylenti dün internette yayılmış.

A natural breakdown is:

• Söylenti = subject
• dün = time expression
• internette = place expression
• yayılmış = verb/predicate

This follows a very common Turkish pattern:

Subject + Time + Place + Verb

But Turkish word order is flexible. You could also hear:

• Söylenti internette dün yayılmış.
• Dün söylenti internette yayılmış.
• Internette söylenti dün yayılmış.

These versions can shift emphasis, but the original order is very natural and neutral.

Not in natural English.

Even though yayılmış can sometimes feel similar to has spread, English normally does not use the present perfect with a finished time expression like yesterday.

So natural English translations would be:

• The rumor apparently spread on the internet yesterday.
• The rumor is said to have spread on the internet yesterday.
• It seems the rumor spread on the internet yesterday.

If dün were removed, then a translation like The rumor has spread on the internet could work better in some contexts.

They are similar, but not always identical.

• söylenti = rumor, report, hearsay
• dedikodu = gossip

Söylenti often sounds a bit more neutral or report-like, while dedikodu can sound more like casual gossip between people.

In this sentence, söylenti is a good fit for rumor.

Yes. This is another useful nuance.

-mış forms can sometimes focus not only on the past event, but also on the discovered result or current state.

So Söylenti internette yayılmış can suggest:

• the rumor spread
• and now it is out there / widely circulating online

This is one reason -mış can sometimes feel a little like English has spread, although the Turkish meaning is still centered on indirect knowledge or discovered result.

Because Turkish often expresses that meaning directly through verb endings, especially -miş / -mış / -muş / -müş.

So instead of saying something like:

• Apparently, the rumor spread yesterday

Turkish can simply say:

• Söylenti dün internette yayılmış.

The evidential nuance is built into the verb itself. This is a major difference between Turkish and English.

Yes, but the tone changes.

• yayılmış = more natural, conversational, neutral
• yayılmıştır = more formal, more assertive, sometimes used in written language or formal statements

Söylenti dün internette yayılmıştır might sound like:

• a formal report
• an official conclusion
• a written explanation

In everyday speech, yayılmış is much more common.

Grammatically, Turkish allows a lot of flexibility, so you may hear unusual orders in special contexts. But Söylenti internette yayılmış dün is not the most natural neutral order.

A learner should prefer:

• Söylenti dün internette yayılmış.
• Söylenti internette dün yayılmış.

Putting dün at the very end is possible only in special emphasis patterns, and it may sound marked or unnatural in ordinary conversation.

Then Turkish would more likely use -dı / -di / -du / -dü, the direct past:

• Söylenti dün internette yayıldı.

This means simply:

• The rumor spread on the internet yesterday.

So the contrast is:

• yayıldı = direct past, plain factual narration
• yayılmış = inferred/reported/discovered past

That contrast is one of the key things English speakers need to get used to in Turkish.