Jag portionerar matresterna.

Portionerar means portion, divide into portions, or serve out into portions.

So Jag portionerar matresterna means something like:

• I portion out the leftovers
• I divide the leftovers into portions
• sometimes naturally in English: I’m portioning the leftovers

It suggests you are separating the leftovers into manageable amounts, often for storage or later meals.

Because it is in the present tense.

The infinitive is portionera = to portion / to divide into portions.
In the present tense, Swedish often adds -r to verbs ending in -a:

• att portionera = to portion
• jag portionerar = I portion

This same form is used with all subjects:

• jag portionerar = I portion
• du portionerar = you portion
• han/hon portionerar = he/she portions

So Swedish verbs do not change for different persons the way English sometimes does.

Yes, it is a real and understandable Swedish verb, and it is fairly transparent because it resembles English portion.

It can sound a bit practical or formal depending on context, especially compared with more everyday alternatives such as:

• dela upp = divide up
• lägga upp i portioner = put into portions

But Jag portionerar matresterna is perfectly understandable and natural in a context like meal prep, storing food, or dividing leftovers for later.

Because Swedish very often makes compound nouns by writing them as one word.

Matresterna can be broken down like this:

• mat = food
• rester = leftovers / remains
• -na = the for plural nouns

So:

• matrester = food leftovers
• matresterna = the food leftovers / the leftovers

English often uses separate words, but Swedish usually joins them into one compound noun.

The ending -na is the definite plural ending here, meaning the.

Compare:

• en matrest = a leftover
• matrester = leftovers
• matresterna = the leftovers

So instead of putting a separate word for the in front, Swedish usually adds the definite ending to the noun itself.

That is why you say:

• matresterna

not:

• de matrester unless you specifically mean those leftovers or are using an adjective, as in de kalla matresterna = the cold leftovers

Because leftovers are usually treated as a plural idea in both English and Swedish.

A single leftover item could be en matrest, but in normal use people often talk about leftover food in general as matrester.

So:

• Jag äter matrester. = I eat leftovers.
• Jag portionerar matresterna. = I portion the leftovers.

Using the plural sounds natural because leftover food is often thought of as several bits or portions, not one single item.

Yes.

The Swedish present tense often covers both:

• simple present: I portion the leftovers
• present continuous: I am portioning the leftovers

So Jag portionerar matresterna could mean either one, depending on context.

If you really want to emphasize an ongoing action, Swedish can sometimes use expressions like:

• Jag håller på att portionera matresterna. = I’m in the middle of portioning the leftovers.

But the plain present tense is very common.

Yes. The normal Swedish word order in a main clause is:

subject + verb + object

So:

• Jag = subject
• portionerar = verb
• matresterna = object

That gives:

• Jag portionerar matresterna.

You can change the order for emphasis, but then Swedish still keeps the verb in second position:

• Matresterna portionerar jag.

That is grammatical, but it sounds marked or contrastive, like The leftovers are what I’m portioning.

For a basic statement, Jag portionerar matresterna is the natural order.

A rough guide for an English speaker is:

yahg por-sho-NEH-rar MAHT-res-ter-na

A few useful points:

• Jag is often pronounced roughly like yahg or sometimes closer to ya in casual speech, depending on dialect.
• portionerar has stress on the -ne- syllable: por-tio-ne-rar
• matresterna has main stress at the start: MAHT-resterna

Swedish pronunciation varies by region, so this is only an approximation, but it should help you get close.

Yes, absolutely.

Jag delar upp matresterna means I divide up the leftovers, and it may sound a bit more everyday in some situations.

The difference is roughly:

• portionerar = emphasizes making portions
• delar upp = emphasizes dividing something up

If you are specifically putting leftovers into meal-sized containers, portionerar is a very good choice. If you just mean separating them, delar upp also works well.

The dictionary forms are:

• jag = I
• portionera = to portion / divide into portions
• matrest = leftover, food remnant

In the sentence, matrest appears in the definite plural form:

• matrest → matrester → matresterna

So if you look the noun up in a dictionary, you would usually search for matrest.