वह लड़की अक्सर रात को माँ के साथ चाय बनाती है।

Both are possible, depending on the structure.

• वह by itself often means he or she.
• Before a noun, it usually works like that.

So वह लड़की literally means that girl, though in context it may be translated more naturally as the girl.

Examples:

• वह आती है = She comes
• वह लड़की आती है = That girl comes

Hindi normally follows Subject–Object–Verb order, while English usually uses Subject–Verb–Object.

In this sentence:

• वह लड़की = subject
• चाय = object
• बनाती है = verb phrase

So the basic pattern is:

वह लड़की ... चाय बनाती है
= That girl ... tea makes

Other parts like अक्सर, रात को, and माँ के साथ are placed before the main verb, which is very normal in Hindi.

अक्सर means often. It is an adverb of frequency.

In Hindi, adverbs like अक्सर are fairly flexible, but they commonly appear before the main verb, often somewhere after the subject:

• वह लड़की अक्सर चाय बनाती है
• वह लड़की रात को अक्सर चाय बनाती है

Both are natural. The exact position can shift a bit for emphasis, but अक्सर usually stays before बनाती है.

Here को is part of a common time expression. In phrases like this, it often means something like at, on, or during, not to.

So:

• रात को = at night
• सोमवार को = on Monday
• शाम को = in the evening

This use of को is idiomatic. You do not need to translate it literally.

Yes, often it can.

• रात को = at night
• रात में = in the night / at night

In many everyday contexts, they are very close in meaning. रात को is extremely common in speech. A learner should recognize both.

Hindi uses postpositions where English uses prepositions.

के साथ is a very common expression meaning with.

So:

• माँ के साथ = with mother / with her mother

You usually cannot drop के here. साथ normally appears as part of के साथ after a noun or pronoun:

• मेरे साथ = with me
• उसके साथ = with him/her
• लड़की के साथ = with the girl

So you should learn के साथ as a set phrase.

Because in expressions like के साथ, के is part of a fixed compound postposition. It does not change here to match the gender of माँ.

So you say:

• माँ के साथ
• सीता के साथ
• लड़की के साथ

This is similar to other fixed expressions:

• के बाद = after
• के लिए = for
• के पास = near / in possession of

So just remember: with साथ, use के साथ.

Because चाय is the direct object here, and Hindi often leaves direct objects unmarked, especially when they are:

• inanimate
• general or nonspecific
• mass nouns

So चाय बनाती है is perfectly normal: makes tea.

You might see को with direct objects when they are more specific, animate, or specially emphasized, but with चाय, no को is usually needed.

बनाती है is the feminine singular habitual/present form of बनाना (to make).

It agrees with लड़की, which is feminine singular.

Compare:

• लड़का चाय बनाता है = The boy makes tea
• लड़की चाय बनाती है = The girl makes tea
• लड़कियाँ चाय बनाती हैं = The girls make tea

So the -ती part shows feminine singular agreement here.

है is the auxiliary verb is. In this kind of present habitual sentence, Hindi normally uses:

main verb stem + habitual ending + है/हैं

So:

• बनाती है = makes
• literally something like making does/is

Without है, the sentence would sound incomplete in standard Hindi.

It describes a habit or a repeated action, not an action happening at this exact moment.

The clues are:

• अक्सर = often
• बनाती है = habitual/simple present form

So the sense is: this is something she regularly does.

If you wanted is making right now, Hindi would use a different structure, such as:

• वह लड़की माँ के साथ चाय बना रही है = The girl is making tea with her mother

Hindi has no direct equivalent of English articles a/an and the.

That means nouns like लड़की, माँ, and चाय can often stand alone without an article. Context tells you whether English should use a, the, or no article at all.

So:

• लड़की could mean a girl or the girl
• चाय could mean tea, some tea, or the tea, depending on context

In this sentence, वह लड़की already helps make the noun specific.

Often, yes. Hindi word order is more flexible than English, especially with adverbs and time phrases, as long as the verb stays near the end.

For example, these are all possible with only slight differences in emphasis:

• वह लड़की अक्सर रात को माँ के साथ चाय बनाती है।
• वह लड़की माँ के साथ अक्सर रात को चाय बनाती है।
• वह लड़की रात को माँ के साथ अक्सर चाय बनाती है।

The most neutral version is usually the one you were given, but learners should know that some movement is normal in Hindi.