Daktari anaangalia ulimi wangu sasa.

A word-by-word breakdown is:

• Daktari = doctor
• anaangalia = is looking at / looks at / is examining
• ulimi = tongue
• wangu = my
• sasa = now

So the whole sentence means The doctor is looking at my tongue now.

Yes, very similar here. The sentence follows a basic Subject + Verb + Object + Time expression pattern:

• Daktari = subject
• anaangalia = verb
• ulimi wangu = object
• sasa = time expression

So Swahili and English line up quite neatly in this example.

Anaangalia can be broken into parts:

• a- = he/she (or a singular human subject such as daktari)
• -na- = present tense
• angalia = look at / examine

So anaangalia literally works like he/she is looking at or he/she looks at.

Because the Swahili verb -angalia already means look at. It normally takes its object directly.

So:

• anaangalia ulimi wangu = is looking at my tongue

You do not need an extra word corresponding to English at here.

Swahili usually does not use articles like English a, an, or the.

So daktari can mean:

• a doctor
• the doctor

The exact meaning depends on context.

In Swahili, possessives usually come after the noun, not before it.

So:

• ulimi wangu = tongue my = my tongue

This is normal Swahili word order.

Because possessives in Swahili must agree with the noun class of the noun they describe.

Ulimi belongs to a noun class that takes the possessive form wangu in the singular, so:

• ulimi wangu = my tongue

You cannot just use one possessive form for every noun. The form changes depending on the noun class.

The plural is ndimi, meaning tongues.

So:

• ulimi wangu = my tongue
• ndimi zangu = my tongues

Notice that the possessive also changes in the plural: wangu becomes zangu.

It can mean either one, depending on context.

Swahili present tense with -na- often covers both:

• is looking at
• looks at

In this sentence, sasa means now, so the most natural interpretation is:

• The doctor is looking at my tongue now

The a- is the subject marker used for a singular human subject, like daktari.

So even though daktari itself does not show masculine or feminine gender, it still takes human agreement:

• Daktari anaangalia... = The doctor is looking...

If the subject were plural, you would get:

• Madaktari wanaangalia... = The doctors are looking...

No. Daktari is not grammatically masculine or feminine.

It can refer to:

• a male doctor
• a female doctor

The verb form anaangalia also does not distinguish he from she. Context tells you which is meant.

Yes, sasa is fairly flexible.

Your sentence:

• Daktari anaangalia ulimi wangu sasa

is natural and clear.

You may also hear things like:

• Sasa daktari anaangalia ulimi wangu = Now the doctor is looking at my tongue.
• Daktari sasa anaangalia ulimi wangu = The doctor is now looking at my tongue.

The position can slightly change the emphasis, but the basic meaning stays similar.

A simple pronunciation guide is:

• Daktari = dahk-TAH-ree
• anaangalia = ah-nah-ahn-gah-LEE-ah
• ulimi = oo-LEE-mee
• wangu = WAHN-goo
• sasa = SAH-sah

A useful rule in Swahili is that stress usually falls on the second-to-last syllable:

• dak-TA-ri
• a-na-an-ga-LI-a
• u-LI-mi
• WA-ngu
• SA-sa