Nikipata swali gumu la hesabu, mara nyingine hutumia kikokotoo baada ya kujaribu mwenyewe.

Nikipata can be broken down into:

• ni- = I
• -ki- = a marker often meaning if/when
• -pata = get / obtain / come across

So nikipata means something like if I get, when I get, or in this context more naturally when I come across.

The -ki- form is often used for a condition or a time-setting clause, so English may translate it as either if or when, depending on context.

Because the adjective has to agree with the noun class of swali.

• swali = question and is a class 5 noun
• the adjective -gumu = difficult / hard
• with a class 5 singular noun, it becomes gumu

So:

• swali gumu = a difficult question
• plural: maswali magumu = difficult questions

A learner may expect ngumu because that is a very common dictionary form or a form seen with other noun classes, but here agreement gives gumu.

This is the associative construction, often translated as of in English.

The pattern is:

• noun + agreeing form of -a
  • another noun

Here:

• swali = question
• la = the class-5 form of -a
• hesabu = math / arithmetic / calculation

So swali la hesabu literally means question of math, which in natural English is math question.

The important point is that la agrees with swali, the head noun, not with hesabu.

In this sentence, hesabu means math, arithmetic, or calculation.

Depending on context, hesabu can refer to:

• arithmetic
• mathematics
• calculation
• sums/problems involving numbers

So swali gumu la hesabu is a difficult math question/problem.

Mara nyingine means sometimes, at times, or on some occasions.

Literally:

• mara = time / occasion
• nyingine = other / another

So the phrase is roughly on other occasions, which works idiomatically as sometimes.

It is a very natural way to express occasional frequency in Swahili.

Hu- marks a habitual action: something that happens as a usual pattern, not just once.

So hutumia means something like:

• uses
• tends to use
• usually uses
• does use (habitually)

In this sentence, because you already have mara nyingine meaning sometimes, the full idea is not always uses, but rather sometimes uses as a recurring habit in that kind of situation.

That is a very common question.

With this habitual hu- form, Swahili often uses hu- without a separate subject marker on the verb. The subject is understood from context or from an explicit noun/pronoun elsewhere.

So here:

• nikipata clearly sets up I
• then hutumia is understood as I use / I tend to use

If you wanted to make the subject extra clear, you could say Mimi hutumia..., but it is not necessary here.

Because after baada ya (after), Swahili commonly uses the infinitive form of the verb.

• baada ya = after
• kujaribu = to try / trying

So baada ya kujaribu literally means after to try, but in natural English it means after trying.

This is a very normal Swahili structure:

• baada ya kula = after eating
• baada ya kusoma = after reading
• baada ya kujaribu = after trying

Swahili often leaves out an object if it is already obvious from context.

Here, the thing being tried is clearly the difficult math question/problem mentioned earlier, so the sentence does not need to repeat it.

So baada ya kujaribu mwenyewe naturally means:

• after trying myself
• more idiomatically, after trying it myself or after trying on my own

English usually wants the object stated more clearly, but Swahili can omit it when it is understood.

Here mwenyewe means myself, personally, or on my own.

It adds emphasis to the idea that the speaker tries first without help.

So baada ya kujaribu mwenyewe means:

• after trying myself
• more naturally, after trying it myself
• or after trying on my own

This word is often used for emphasis:

• mimi mwenyewe = I myself
• yeye mwenyewe = he/she himself/herself

In this sentence, the subject is already understood, so mwenyewe alone is enough.

Kikokotoo means calculator.

Yes, the ki- is significant: it shows that the noun belongs to class 7 in the singular.

So:

• singular: kikokotoo = calculator
• plural: vikokotoo = calculators

This matters because class 7/8 nouns use their own agreement patterns with adjectives, verbs, and other modifiers.

It is also a nice example of how Swahili often builds nouns from verb roots related to the action involved.

Yes, natumia is possible in some contexts, but it gives a slightly different feel.

• natumia can mean I use / I am using
• hutumia emphasizes a habitual pattern

So in a sentence describing what someone generally does in that situation, hutumia is a good choice.

Compare the feel:

• mara nyingine natumia kikokotoo = sometimes I use a calculator
• mara nyingine hutumia kikokotoo = sometimes I tend to use a calculator / sometimes I do use a calculator as a habit in such cases

Both can work, but hutumia highlights repeated behavior more clearly.