Dayım nohutları dün akşam ıslatmış olmalı, yoksa bu kadar çabuk pişmezdi.

Dayım means my uncle—specifically my mother’s brother.

The ending -ım is the 1st person singular possessive suffix, meaning my.

• dayı = maternal uncle
• dayım = my maternal uncle

This is very common in Turkish with family words:

• annem = my mother
• babam = my father
• ablam = my older sister
• dayım = my uncle

So Turkish often expresses my X as one word, rather than using a separate word like my.

Nohutları is made up of:

• nohut = chickpea
• -lar = plural
• -ı = accusative case

So:

• nohut = chickpea / chickpeas
• nohutlar = chickpeas
• nohutları = the chickpeas (as a specific direct object)

In this sentence, the chickpeas are a definite direct object, so Turkish uses the accusative.

Compare:

• Dayım nohut ıslattı. = My uncle soaked chickpeas.
  (some chickpeas, indefinite)
• Dayım nohutları ıslattı. = My uncle soaked the chickpeas.
  (specific chickpeas)

In this sentence, it means the chickpeas, not his chickpeas.

That is because nohutları can sometimes be ambiguous out of context:

• nohutları can mean the chickpeas
• or his/her chickpeas

But here, the structure and meaning clearly point to the chickpeas as the definite object of ıslatmış olmalı.

If Turkish wanted to be extra clear about his chickpeas, the context would usually make that obvious, or it might use a fuller phrase.

Dün akşam means yesterday evening or last night, depending on context.

• dün = yesterday
• akşam = evening

Together, they function as a time expression.

Turkish often places time expressions before the verb, as in this sentence:

• Dayım nohutları dün akşam ıslatmış olmalı.

But the meaning stays the same even if the order changes somewhat, because Turkish word order is fairly flexible.

Islatmış olmalı means something like must have soaked.

It combines two ideas:

• ıslatmış = apparently/it seems he soaked / he has soaked
• olmalı = must be / must have / probably

Together, ıslatmış olmalı expresses a strong conclusion or deduction about a past action:

• He must have soaked them.
• He probably soaked them.

In English, this is often translated with must have + past participle.

The suffix -mış is often called the inferential or evidential past.

It is used when the speaker is not directly reporting something they personally saw happen, but is instead:

• inferring it
• concluding it from evidence
• reporting it indirectly

Here, the speaker sees that the chickpeas cooked unusually fast and concludes:

• Dayım ... ıslatmış olmalı
  = My uncle must have soaked them.

So -mış fits the idea that the speaker is inferring a past action rather than simply stating a witnessed fact.

Olmalı adds the meaning of must or probably.

By itself:

• ıslatmış can suggest apparently he soaked them or it seems he soaked them

But:

• ıslatmış olmalı = he must have soaked them

So this construction is stronger and more clearly deductive. It is a very common way in Turkish to express a conclusion about the past.

A helpful way to think about it:

• -mış = inferred/reported past
• olmalı = must / probably

Together:

• inferred past + modal deduction

Yes, in many learning contexts, ıslatmış olmalı is the more transparent and common way to express must have soaked.

• ıslatmış olmalı = he must have soaked
• ıslatmıştır can also express probability/deduction in some contexts, but it is often less straightforward for learners and can sound more formal or context-dependent

So for a learner, it is safest to understand ıslatmış olmalı as a very standard deduction pattern.

Here, yoksa means otherwise or if not.

In this sentence:

• Dayım nohutları dün akşam ıslatmış olmalı, yoksa bu kadar çabuk pişmezdi.

The meaning is:

• My uncle must have soaked the chickpeas yesterday evening; otherwise they wouldn’t have cooked this quickly.

So yoksa introduces the consequence of the opposite situation:

• if he hadn’t soaked them,
• they wouldn’t have cooked so fast.

Pişmezdi means would not cook / wouldn’t have cooked, while pişmedi means did not cook.

That is a big difference.

• pişmedi = it did not cook
• pişmezdi = it would not cook / it wouldn’t have cooked

In this sentence, the speaker is talking about a hypothetical alternative situation:

• If my uncle had not soaked the chickpeas, they would not have cooked this quickly.

So Turkish uses pişmezdi, not pişmedi, because this is counterfactual or hypothetical, not a simple statement of fact.

Pişmezdi can be broken down like this:

• piş- = cook
• -mez = negative aorist / does not cook
• -di = past

Together, in this kind of context, it often gives a meaning like:

• would not cook
• wouldn’t have cooked

This is a very common Turkish pattern for unreal or hypothetical results, especially when the condition is implied or stated elsewhere.

The if idea is implied by yoksa.

English often makes this fully explicit:

• ... otherwise, they wouldn’t have cooked this quickly.
• implied: If he hadn’t soaked them...

Turkish does not always need a separate if-clause when the meaning is already clear from words like yoksa and the verb form pişmezdi.

So the conditional idea is there, even though there is no full clause like:

• ... ıslatmasaydı, ... = if he hadn’t soaked them, ...

Bu kadar çabuk means this quickly or so quickly.

• bu kadar = this much / this degree / so much
• çabuk = quickly / fast

Together:

• bu kadar çabuk = this fast, this quickly, so quickly

It refers to the unusually short cooking time and is the evidence behind the speaker’s deduction.

Turkish typically places the main verb at the end of the clause.

So:

• Dayım nohutları dün akşam ıslatmış olmalı
• ... bu kadar çabuk pişmezdi

both follow the normal Turkish tendency of putting the verb last.

Before the verb, Turkish can place:

• the subject
• the object
• time expressions
• adverbs

This can feel very different from English, but it is one of the most basic sentence patterns in Turkish.

Yes, Turkish word order is flexible, although some versions sound more natural depending on emphasis.

For example, these can still be understandable:

• Dayım dün akşam nohutları ıslatmış olmalı.
• Nohutları dayım dün akşam ıslatmış olmalı.

The version in your sentence is perfectly natural. Changing the order usually changes focus or emphasis, not the core meaning.

Here, çabuk functions adverbially, meaning quickly.

Turkish often uses the same form for adjective and adverb:

• çabuk tren would be unnatural, but in many cases Turkish does not add a separate -ly type ending the way English does.
• çabuk koşuyor = he/she runs quickly
• çabuk pişmezdi = it wouldn’t cook quickly

So learners often need to get used to Turkish using one form where English distinguishes quick and quickly.

Because nohutları is the object, not the subject.

The subject is dayım in the first clause, and the second clause has an implied subject referring to the chickpeas as a thing being cooked.

In Turkish, verbs agree with the subject in person, but not in the same way English learners may expect from plural nouns in every part of the sentence.

Also, in the second clause, pişmezdi does not need a plural marker just because the thing being cooked is plural.

Yes, but that would create a different structure.

For example:

• Dayım nohutları dün akşam ıslatmış olmalı, yoksa bu kadar çabuk pişmezdi. = My uncle must have soaked the chickpeas yesterday evening, otherwise they wouldn’t have cooked this quickly.

A more explicit conditional version could be:

• Dayım nohutları dün akşam ıslatmasaydı, bu kadar çabuk pişmezdi. = If my uncle hadn’t soaked the chickpeas yesterday evening, they wouldn’t have cooked this quickly.

So ıslatmış olmalı gives a deduction, while ıslatmasaydı gives an explicit if he hadn’t soaked them clause.

The sentence follows this reasoning:

1. The chickpeas cooked very quickly.
2. Chickpeas normally do not cook that quickly unless they were soaked beforehand.
3. Therefore, the speaker concludes that the uncle must have soaked them the night before.

So grammatically and logically, it is a sentence of deduction based on evidence. That is why Turkish uses:

• ıslatmış olmalı for the deduction
• yoksa ... pişmezdi for the hypothetical consequence otherwise