Ali sada moram da radim.

Moram means I must or I have to. It is the 1st person singular present tense form of the verb morati (to have to / must).

A few present-tense forms are:

• ja moram = I must
• ti moraš = you must
• on/ona/ono mora = he/she/it must
• mi moramo = we must
• vi morate = you must
• oni moraju = they must

So moram tells you that the subject is I, even though ja is not written.

After many verbs in Serbian, especially modal-like verbs such as morati (must / have to), Serbian often uses da + present tense instead of a separate infinitive.

So:

• moram da radim = literally something like I must that I work, but naturally it means I have to work

This is a very common pattern in modern Serbian:

• hoću da idem = I want to go
• mogu da dođem = I can come
• moram da učim = I have to study

You may also encounter infinitives in dictionaries, but in everyday speech da + present is extremely common.

Radim is the 1st person singular present tense of raditi (to work / to do).

So:

• radim = I work / I am working

In this sentence, because it follows moram da, it means:

• moram da radim = I have to work

The verb agrees with the understood subject I, just like moram does.

Serbian often drops subject pronouns when the verb form already makes the subject clear.

Since both moram and radim are clearly 1st person singular, ja is unnecessary:

• Ali sada moram da radim. = normal, natural
• Ali sada ja moram da radim. = possible, but more emphatic

Including ja usually adds emphasis, contrast, or emotion, like But I have to work now.

Ali means but.

It connects this sentence to something said before. For example, the implied idea might be:

• I’d like to stay, but now I have to work.

So ali signals contrast. It is a very common conjunction in Serbian.

Sada means now.

You will also very often hear sad, which is a shorter, very common spoken form:

• sada = now
• sad = now

In most everyday situations, both work. Sada can sound a bit more complete or slightly more formal, while sad is extremely common in speech.

So these are both natural:

• Ali sada moram da radim.
• Ali sad moram da radim.

Yes, Serbian word order is fairly flexible, but the original order is very natural.

Ali sada moram da radim sounds like:

• But now I have to work.

You can move parts around for emphasis:

• Ali moram sada da radim.
• Sada moram da radim.
• Moram sada da radim.

These all make sense, but the focus changes slightly. The original sentence puts sada early, which emphasizes now in a natural way.

It can mean both, depending on context.

In Serbian, the present tense often covers both:

• I work
• I am working

So radim by itself can mean either one. In this sentence, because of moram da, the natural meaning is:

• I have to work

If context were different, radim could also simply mean I’m working.

Raditi is the normal verb for to work in the sense of doing a job or being occupied with work.

Examples:

• Radim danas. = I’m working today.
• Moram da radim. = I have to work.

Be aware that raditi can also mean to do in some contexts, and even to function for machines:

• Šta radiš? = What are you doing?
• Telefon ne radi. = The phone isn’t working.

So it is a very common and useful verb.

Yes. Raditi is an imperfective verb.

That makes sense here because working is being presented as an ongoing activity or general obligation, not as a single completed action.

After moram da, Serbian often uses the verb whose aspect fits the meaning:

• moram da radim = I have to work / be working
• moram da uradim = I have to do/finish it

So radim focuses on the activity itself, while a perfective verb would usually focus more on completion.

A simple approximate pronunciation for an English speaker is:

AH-lee SAH-dah MOH-rahm dah RAH-deem

A few tips:

• r in Serbian is usually rolled or tapped
• a is like the a in father
• i is like ee in see
• stress can vary, but for a beginner, aiming for clear vowels is more important than perfect accent

Serbian spelling is quite phonetic, so once you know the sounds, pronunciation is usually straightforward.

Yes, in many contexts that is a perfectly natural English translation.

Moram is strongest as must / have to, but depending on tone and context, English may soften it as:

• But now I have to work
• But now I need to work
• But I have to work now

The Serbian sentence itself expresses obligation or necessity. The exact English wording depends on context and style.