मैं आपको अभी एक संदेश भेज रही हूँ।

आपको is the oblique/dative form of आप with को.

In this sentence, आपको means something like to you. With verbs like भेजना (to send), Hindi often marks the recipient with को:

• मैं आपको संदेश भेज रही हूँ। = I am sending a message to you.

Also, आप is the polite/respectful form of you. Depending on who you are talking to, you could also hear:

• मैं तुमको अभी एक संदेश भेज रही हूँ।
• मैं तुझे अभी एक संदेश भेज रही हूँ। (more intimate/nonstandard in some contexts)

So आपको tells you both:

1. the person is the receiver of the message, and
2. the speaker is using a polite form of you.

This is the present progressive structure, used for an action happening right now or currently.

It is built like this:

• main verb stem: भेज-
• progressive participle: रहा / रही / रहे
• form of होना: हूँ / है / हैं, etc.

So:

• भेज रही हूँ = am sending

In this sentence, रही shows that the speaker is female.

Compare:

• मैं ... भेज रही हूँ। = said by a female speaker
• मैं ... भेज रहा हूँ। = said by a male speaker

In standard Hindi, both parts are normally needed to make the full progressive form.

• रही shows the ongoing aspect
• हूँ is the auxiliary verb am

Together they work like am sending in English.

So:

• भेज रही हूँ = am sending
• not just भेज रही in standard complete speech

In casual speech, people sometimes drop the auxiliary in conversation, but learners should treat भेज रही हूँ as the normal full form.

Good question. In this sentence, रही agrees with the subject मैं, not with संदेश.

That is because this is a non-perfective construction: the present progressive. In these tenses, the verb normally agrees with the subject.

So if the speaker is:

• female: मैं ... भेज रही हूँ
• male: मैं ... भेज रहा हूँ

It does not change based on संदेश, even though संदेश is masculine.

अभी usually means now, right now, or at this moment.

In this sentence, it emphasizes that the sending is happening immediately/currently.

Depending on context, अभी can sometimes also mean just now or for now, but here the natural sense is right now.

Hindi word order is often more flexible than English, but the most neutral pattern is usually:

• Subject + indirect object + time expression + direct object + verb

So here:

• मैं = subject
• आपको = recipient / indirect object
• अभी = time
• एक संदेश = direct object
• भेज रही हूँ = verb

A very natural feature of Hindi is that the main verb comes near the end.

You may also hear slight rearrangements, for example:

• मैं अभी आपको एक संदेश भेज रही हूँ।

That can also be correct, but the original order is perfectly natural.

Yes, very often एक works a lot like a/an.

Literally, एक means one, but in many sentences it introduces a singular countable noun in an indefinite way:

• एक संदेश = a message

Sometimes Hindi leaves एक out when English would still use a/an, but here using एक is very natural.

Both are possible, but they have slightly different flavor.

• संदेश = a native Hindi/Sanskrit-based word, a bit more formal or standard
• मैसेज = the English borrowing message, very common in everyday speech, especially for phone/text messaging

So in real life, many speakers might say:

• मैं आपको अभी एक मैसेज भेज रही हूँ।

But संदेश is absolutely correct and understandable.

Yes, often it can.

Because हूँ already tells you the subject is I, Hindi often drops pronouns when the meaning is clear from context.

So you might hear:

• आपको अभी एक संदेश भेज रही हूँ।

That still naturally means I am sending you a message right now, especially in conversation or texting.

However, including मैं is also completely normal, especially when you want to be clear or slightly emphatic.

Hindi expresses this differently from English.

English splits the tense/aspect across:

• am
• sending

Hindi uses:

• the main verb stem
• the progressive marker रही
• the auxiliary हूँ

So the meaning of am sending is packed into:

• भेज रही हूँ

It is not translated word-for-word, but functionally it does the same job.

Yes. संदेश is broad enough to mean a message in general.

Depending on context, it could refer to:

• a text message
• a chat message
• a written message
• even a general communication

If the speaker wanted to be more specific, they might say something like:

• मैसेज
• ईमेल
• व्हाट्सऐप मैसेज

But संदेश works as a general word.

Only the gender-marked part of the progressive would change:

• female speaker: मैं आपको अभी एक संदेश भेज रही हूँ।
• male speaker: मैं आपको अभी एक संदेश भेज रहा हूँ।

Everything else stays the same.

So the key change is:

• रही → रहा