יש קופסה גדולה של תה ליד הקופה, אבל האריזה שלה לא טובה.

יש is the Hebrew way to say there is or there are.

So:

יש קופסה גדולה של תה...
= There is a big box of tea...

Hebrew does not use a separate word for there in this structure. יש by itself gives the idea of existence.

A useful contrast:

• יש = there is / there are
• אין = there isn’t / there aren’t

For example:

• יש קופסה = There is a box
• אין קופסה = There is no box / There isn’t a box

In Hebrew, adjectives usually come after the noun they describe.

So:

• קופסה גדולה = a big box
• literally: box big

This is the normal Hebrew word order for noun + adjective.

More examples:

• בית גדול = a big house
• מכונית חדשה = a new car
• ילד קטן = a small boy

Because קופסה is a feminine singular noun, and adjectives in Hebrew must agree with the noun in gender and number.

So:

• masculine singular: גדול
• feminine singular: גדולה
• masculine plural: גדולים
• feminine plural: גדולות

Since קופסה is feminine singular, the correct form is גדולה.

של means of.

So:

• קופסה של תה = a box of tea
• קופסה גדולה של תה = a big box of tea

This is a very common Hebrew pattern:
noun + של + noun

Examples:

• כוס של מים = a glass of water
• בקבוק של יין = a bottle of wine
• צלחת של אורז = a plate of rice

In natural English, we often do not translate של directly as of, but that is the basic idea.

Because the sentence means a box of tea, not a box of the tea.

When talking about a substance or category in a general way, Hebrew often leaves it indefinite:

• של תה = of tea
• של קפה = of coffee
• של סוכר = of sugar

You would use התה only if you meant a specific tea already known from the context:

• הקופסה של התה שקנינו = the box of the tea we bought

ליד means next to, beside, or near.

So:

• ליד הקופה = next to the register / near the checkout

The word ליד is very common for physical location.

Examples:

• ליד הבית = next to the house
• ליד הדלת = by the door
• ליד השולחן = near the table

Here קופה most likely means cash register, checkout, or store counter.

So ליד הקופה in a store context would usually mean:

• near the cash register
• by the checkout

In other contexts, קופה can also mean things like fund or cash box, but in this sentence the shop meaning is the natural one.

Because they are doing different jobs in the sentence.

• קופסה is being introduced for the first time, so it is indefinite: a box
• הקופה refers to a specific checkout/register in the situation, so it is definite: the register

So:

• קופסה = a box
• הקופה = the register

This is very normal in Hebrew, just as in English:

• There is a box near the register

האריזה means the packaging.

The sentence is talking about the packaging of that specific box, so Hebrew uses the definite form:

• אריזה = packaging
• האריזה = the packaging

Then שלה means hers or its for a feminine thing.

So:

• האריזה שלה = its packaging

Even though English usually says its, Hebrew uses the same possessive forms that are also used for his/hers, depending on the gender of the thing referred to.

Yes. In Hebrew, possessive words like שלו and שלה are used for both people and things.

So:

• שלו = his / its
• שלה = her / its

Which one you use depends on the grammatical gender of the noun being referred to.

Since קופסה is feminine, Hebrew uses שלה:

• האריזה שלה = its packaging

To an English speaker, שלה may feel like hers, but in Hebrew it is also normal for inanimate feminine nouns.

Grammatically, שלה could refer to a previous feminine noun, and both קופסה and קופה are feminine. But in context, the natural meaning is clearly the box.

Why? Because packaging logically belongs to the box of tea, not to the cash register.

So Hebrew relies on context here, just like English often does.

Because in the present tense, Hebrew usually does not use a separate verb for to be.

So:

• האריזה שלה לא טובה
• literally: its packaging not good
• natural English: its packaging is not good

This is called a nominal sentence. It is completely normal in Hebrew.

Compare:

• הוא עייף = he is tired
• היא בבית = she is at home
• הספר מעניין = the book is interesting

No present-tense is/am/are is needed.

לא is the normal word for not.

So:

• טובה = good
• לא טובה = not good

Also, טובה is feminine singular because it agrees with אריזה, which is feminine singular.

A very literal breakdown is:

• האריזה = the packaging
• שלה = its
• לא = not
• טובה = good

So the whole clause means:

• Its packaging is not good

Yes, אריזתה is possible, and it means her/its packaging.

But it is more formal, literary, or less common in everyday speech.

In modern spoken Hebrew, people usually prefer:

• האריזה שלה

rather than:

• אריזתה

So the sentence as given sounds natural and everyday.