אם הג'ינס שלך לא יתייבשו עד הערב, את יכולה ללבוש את המכנסיים השחורים.

אם means if. It introduces the condition:

אם הג'ינס שלך לא יתייבשו עד הערב
= If your jeans don’t dry by the evening

So the whole sentence has a basic if..., then... structure:

• אם... = if ...
• main clause after that = what can/will happen if the condition is true

That is a very common question. In Hebrew, after אם referring to a future possibility, you normally use the future tense:

• אם הג'ינס שלך לא יתייבשו...
• literally: If your jeans will not dry...

This is normal Hebrew grammar. English and Hebrew behave differently here.

So:

• English: If they don’t dry
• Hebrew: אם הם לא יתייבשו

Because ג'ינס here is being treated as a plural item, like pants/trousers in English.

יתייבשו = they will dry / they dry
It is the 3rd person masculine plural future form.

Hebrew often treats clothing items like pants as plural:

• מכנסיים is always plural in form
• ג'ינס can also be treated as plural in everyday speech, especially when it means a pair of jeans

So:

• הג'ינס שלך לא יתייבשו = your jeans won’t dry

Yes, in real life you may hear both. Some speakers treat ג'ינס as a singular item, and some treat it more like a plural garment.

So both of these may be heard:

• הג'ינס שלך לא יתייבש = your jeans won’t dry
• הג'ינס שלך לא יתייבשו = your jeans won’t dry

In your sentence, the speaker chose the plural version.

שלך means your.

In this sentence, שלך refers to the owner of the jeans. This form can be used for:

• your to a man
• your to a woman

So הג'ינס שלך simply means your jeans.

The listener’s gender becomes clear later from את יכולה, which is specifically you addressed to a woman.

את is you when speaking to one woman.
יכולה means can in the feminine singular form.

So:

• את יכולה = you can (to a woman)
• אתה יכול = you can (to a man)

This sentence is addressed to a female listener, which is why it uses:

• את
• יכולה

Hebrew adjectives and some participle-like forms must agree with the person they describe.

Here יכולה agrees with את:

• את יכולה = you can (female)
• אתה יכול = you can (male)

So the ending -ה shows feminine singular agreement.

Correct — this את is a completely different word.

In את המכנסיים השחורים, את is the direct object marker. It appears before a definite direct object, usually something with ה- (the).

So:

• ללבוש מכנסיים שחורים = to wear black pants
• ללבוש את המכנסיים השחורים = to wear the black pants

This את has no translation in English. It is just a grammar marker.

Yes. מכנסיים is one of those Hebrew nouns that normally appears in a plural form, even when it means a single item of clothing.

It works a lot like English pants or trousers.

So:

• מכנסיים = pants / trousers
• המכנסיים = the pants / the trousers

That is why the adjective is plural too:

• השחורים = black, masculine plural

Adjectives in Hebrew agree with the noun they describe in:

• gender
• number
• definiteness

Here the noun is המכנסיים:

• plural
• masculine
• definite

So the adjective must match:

• השחורים = the black (masculine plural definite)

That gives:

• המכנסיים השחורים = the black pants

Because in Hebrew, when a noun + adjective phrase is definite, both usually take ה-.

So:

• מכנסיים שחורים = black pants
• המכנסיים השחורים = the black pants

This is different from English, where only the appears once.

ללבוש is the infinitive to wear / to put on, depending on context.

In this sentence:

• את יכולה ללבוש... = you can wear...

So the structure is:

• יכולה = can
• ללבוש = to wear

Very common pattern:

• אני יכול/יכולה + infinitive
• אתה יכול/את יכולה + infinitive

Examples:

• אני יכולה ללכת = I can go
• אתה יכול לאכול = you can eat
• את יכולה ללבוש את המכנסיים השחורים = you can wear the black pants

In this sentence, עד הערב means by the evening / by tonight.

Literally, עד often means until/up to, but in context it can also mean by a certain time.

So here:

• לא יתייבשו עד הערב = won’t dry by evening

That is the natural meaning in this sentence.

The Hebrew sentence is:

אם הג'ינס שלך לא יתייבשו עד הערב, את יכולה ללבוש את המכנסיים השחורים.

Word-for-word, it is roughly:

If the-jeans your not will-dry by the-evening, you can wear the pants the-black.

Hebrew word order is often similar to English, but not always identical. A few things stand out:

• your jeans becomes the jeans your
• the black pants becomes the pants the black
• future tense appears after אם

This is all normal Hebrew structure, not a strange or poetic version.

You would change the feminine forms to masculine:

אם הג'ינס שלך לא יתייבשו עד הערב, אתה יכול ללבוש את המכנסיים השחורים.

Changes:

• את → אתה
• יכולה → יכול

Everything else can stay the same.

If you want to make the listener’s gender explicit in the possessive, Hebrew can use a fuller structure, though it is less compact:

• הג'ינס שלך = your jeans
• הג'ינס שלךָ / שלךְ is usually clear in speech from pronunciation, but in ordinary unpointed writing both look the same: שלך

In everyday writing, people usually just write שלך and let context show whether it means:

• your (male)
• your (female)

In your sentence, the later words את יכולה clearly show the listener is female.