Kirpiklerin birbirine yapışmış olmalı; biraz yüzünü yıka.

Kirpiklerin means your eyelashes.

Breakdown:

• kirpik = eyelash
• kirpikler = eyelashes
• kirpiklerin = your eyelashes

The ending -in here is the 2nd person singular possessive ending: your.

It is plural because we normally talk about eyelashes as a set. Turkish often uses the plural naturally for things like this when there are many of them.

Birbirine means to each other or to one another.

Breakdown:

• birbiri = each other / one another
• -ne = a form of the dative ending, meaning to

So:

• birbirine yapışmak = to stick to each other

This is used because the verb yapışmak normally goes with the dative case:

• X, Y’ye yapıştı = X stuck to Y

So kirpiklerin birbirine yapışmış means your eyelashes have stuck to each other / are stuck together.

Yapışmış comes from yapışmak, meaning to stick or to get stuck.

The form yapışmış is a -mış/-miş form, which often describes:

• a completed action with a resulting state, or
• something inferred rather than directly witnessed

Here it suggests a result:

• yapışmış = stuck, gotten stuck, have stuck together

So the sentence is not just about the action of sticking; it is about the condition the eyelashes are now in.

Here olmalı means something like must be or must have in the sense of the speaker is making a deduction.

By itself:

• olmalı can mean should be or must be

But in yapışmış olmalı, it means:

• must have stuck together
• must be stuck together

So this is not really giving an obligation. It is expressing an assumption:

• Your eyelashes must have stuck together.

That is a very common use of -malı/-meli in Turkish: not just obligation, but also logical conclusion.

Because the meanings are very different.

• yapışmış olmalı = must have stuck together / must be stuck together
• yapışmalı = should stick / must stick

So if you said Kirpiklerin birbirine yapışmalı, it would sound like:

• Your eyelashes should stick to each other

That is clearly not the intended meaning.

The combination past participle + olmalı is what creates the idea of deduction about a completed or resulting situation.

Yüzünü yıka means wash your face.

Breakdown:

• yüz = face
• yüzün = your face
• yüzünü = your face + accusative object marking
• yıka = wash! (imperative, singular)

So yüzünü yıka literally works like:

• wash your face

The -n- you see before the last vowel is a buffer consonant that appears between endings.

Because yıkamak is a transitive verb, and here your face is a specific, definite object.

In Turkish, definite direct objects usually take the accusative.

So:

• yüzün = your face
• yüzünü = your face (as the specific thing being washed)

That is why Turkish says:

• Yüzünü yıka. = Wash your face.

This is very normal with body parts:

• ellerini yıka = wash your hands
• saçını tara = comb your hair

Biraz means a little, a bit, or sometimes just softens the command.

So:

• biraz yüzünü yıka can mean wash your face a little
• but in natural English it may also feel more like go wash your face a bit

It can make the command sound less abrupt. It does not always mean a precise small amount.

Yıka is the informal singular imperative:

• yıka = wash!

It is used when speaking to:

• one person
• informally

Other forms:

• yıkayın = wash! (plural or polite singular)
• yıkayınız = more formal, often written or very polite

So yüzünü yıka is what you would say to one person in an ordinary, casual context.

Not completely. Turkish word order is flexible, although some orders sound more neutral than others.

Here:

• Biraz yüzünü yıka is natural.
• Yüzünü biraz yıka is also possible.

The difference is mainly emphasis:

• biraz earlier can give a general a bit / just a little feel
• putting yüzünü earlier can emphasize your face

Turkish often moves words around for focus, but the meaning stays similar.

The semicolon links two closely related ideas:

• Kirpiklerin birbirine yapışmış olmalı
• biraz yüzünü yıka

The logic is:

• Your eyelashes must have stuck together; wash your face a little.

In speech, this would just sound like a pause between two connected clauses. A comma or a full stop could also appear in some contexts, but the semicolon nicely shows that the second part follows from the first.

Usually, no. It suggests the speaker is inferring the situation.

That is one reason -mış is useful in Turkish: it often carries a sense of:

• reported information
• inference
• conclusion from evidence

So the speaker is likely thinking something like:

• Your eyelashes look weird / your eyes look crusty, so your eyelashes must have stuck together.

This makes the sentence sound like an observation-based guess, not a direct report of what the speaker witnessed.

Yes. Depending on context, you might render it as:

• Your eyelashes must have stuck together; wash your face a little.
• Your eyelashes must be stuck together; go wash your face a bit.
• Your eyelashes seem to have stuck together; wash your face.

The Turkish grammar allows a slight range here because yapışmış olmalı can point to either:

• the completed event (must have stuck together), or
• the resulting state (must be stuck together)

Both are reasonable depending on the situation.