मैं दोस्त को बुलाऊँगी।

A word-by-word breakdown is:

• मैं = I
• दोस्त = friend
• को = a postposition marking the person affected by the action; here it marks friend as the one being called
• बुलाऊँगी = will call / will invite said by a female speaker

So the structure is basically:

I + friend + ko + will-call

को is a very common Hindi postposition. In this sentence, it marks दोस्त as the person receiving the action.

With verbs like बुलाना (to call / invite / summon), the person being called is commonly marked with को:

• मैं दोस्त को बुलाऊँगी।
• वह मुझे बुलाएगा। = He will call me.

English does not have a direct equivalent word here, so learners often find this tricky. You can think of को as helping show who is being called.

बुलाऊँगी comes from the verb बुलाना (to call / invite).

A simple way to understand it:

• verb root/stem: बुला-
• future marker for I: -ऊँ-
• feminine ending: -गी

So:

बुला + ऊँ + गी = बुलाऊँगी

This means I will call, spoken by a woman or girl.

In this sentence, -ऊँगी tells you two things:

1. the subject is first person singular = I
2. the speaker is female

So बुलाऊँगी means I will call if the speaker is female.

Compare:

• मैं बुलाऊँगा = I will call (male speaker)
• मैं बुलाऊँगी = I will call (female speaker)

A male speaker would say:

मैं दोस्त को बुलाऊँगा।

The only change is:

• बुलाऊँगी → बुलाऊँगा

So:

• -ऊँगी = female speaker
• -ऊँगा = male speaker

दोस्त can refer to either a male friend or a female friend. It is often used as a common-gender noun in everyday Hindi.

So depending on context, दोस्त could mean:

• friend
• male friend
• female friend

If needed, context or extra words clarify it.

Many Hindi nouns do not visibly change in every role the way learners might expect. दोस्त stays दोस्त here, and the role is shown by को.

So instead of changing the noun itself, Hindi often uses a postposition:

• दोस्त = friend
• दोस्त को = to the friend / the friend as object

That is very normal Hindi grammar.

It can often be omitted if the context is clear, because the verb already shows the person and gender.

So both are possible:

• मैं दोस्त को बुलाऊँगी।
• दोस्त को बुलाऊँगी।

The second still sounds natural in the right context, because बुलाऊँगी already tells you I and female speaker.

Hindi often drops pronouns when they are understood.

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

So English:

• I will call the friend.

Hindi:

• मैं = subject
• दोस्त को = object
• बुलाऊँगी = verb

That gives:

मैं दोस्त को बुलाऊँगी।

So the verb normally comes at the end.

Yes. बुलाना can mean:

• to call someone
• to summon someone
• to invite someone

The exact meaning depends on context.

For example:

• in a casual situation, it may mean call over
• in an event context, it may mean invite
• in a command-like context, it may mean send for

So मैं दोस्त को बुलाऊँगी could mean I’ll call my friend over or I’ll invite my friend, depending on the situation.

Good question. This sentence as written does not explicitly say my.

It literally says something like:

I will call friend / the friend / a friend

Hindi does not use articles like a and the, and possession is only shown if you add it.

If you specifically want my friend, you would usually say:

• मैं अपने दोस्त को बुलाऊँगी।

Here अपने means my own in this context.

So the original sentence is natural, but it is less specific than English may be.

A rough pronunciation guide is:

bu-laa-oong-gee

More carefully:

• बु = bu
• ला = laa
• ऊँ = a nasalized oon
• गी = gee

So it sounds roughly like:

bu-LAA-oon-gee

The ँ shows nasalization, so the vowel is slightly nasal.

In standard Hindi, with बुलाना used this way, को is normally expected for the person being called.

So:

• मैं दोस्त को बुलाऊँगी। = normal and correct

Without को, the sentence sounds incomplete or unnatural to most speakers in this meaning.

So for learners, it is safest to remember:

person + को + बुलाना

It is neutral and natural everyday Hindi. Nothing in it is especially formal or especially casual.

The sentence does not include any special honorific language. It is just a straightforward statement:

I will call/invite the friend.

If needed, formality is usually shown more through context, word choice, and how you refer to the other person than through this verb form itself.