Æfingin hjálpar mér að muna reglurnar.

Here are the basic forms you would usually look up:

• æfingin → æfing
• hjálpar → hjálpa
• mér → pronoun ég
• að → að
• muna → muna
• reglurnar → regla

This is useful because Icelandic words often change form for case, number, definiteness, or verb conjugation.

Because -in is the suffixed definite article, meaning the.

So:

• æfing = exercise / practice
• æfingin = the exercise / the practice

Unlike English, Icelandic usually attaches the to the end of the noun instead of using a separate word.

In this sentence, æfingin is also in the nominative singular, because it is the subject of the sentence.

Because hjálpar is the present tense, 3rd person singular form of the verb hjálpa.

The subject is æfingin, which is singular, so the verb must also be singular:

• að hjálpa = to help
• hjálpar = helps

So Æfingin hjálpar... means The exercise/practice helps...

Because the verb hjálpa takes the dative case for the person being helped.

The pronoun forms are:

• ég = I
• mig = me, accusative
• mér = me, dative

Since Icelandic says hjálpa einhverjum = help someone, with someone in the dative, you get:

• hjálpar mér = helps me

This is something learners usually just have to memorize with the verb: hjálpa + dative.

Here að is the infinitive marker, like English to before a verb.

So:

• að muna = to remember

After hjálpa, Icelandic often uses this pattern:

• hjálpa einhverjum að gera eitthvað
  = help someone do something

So hjálpar mér að muna reglurnar literally means something like helps me to remember the rules.

Because muna is an infinitive here.

After að, Icelandic normally uses the infinitive form of the verb:

• að muna = to remember

So the structure is:

• hjálpar mér = helps me
• að muna reglurnar = to remember the rules

In this sentence, reglurnar is the direct object of muna, so it is in the accusative plural definite.

The noun is:

• regla = rule
• reglur = rules
• reglurnar = the rules

A useful thing to know is that for this noun, the nominative plural definite and accusative plural definite look the same: reglurnar. So even though the form looks the same, its role here is object, so it is accusative.

Because Icelandic usually expresses the as a suffix attached to the noun.

So instead of a separate word like English the rules, Icelandic has one word:

• reglur = rules
• reglurnar = the rules

This is one of the most noticeable differences from English. The same thing happens in æfingin.

Yes. Both are feminine:

• æfing = feminine
• regla = feminine

That matters because gender affects endings, including definite forms and plural forms.

For example:

• æfing → æfingin
• regla → reglur → reglurnar

Knowing the gender helps you predict how the noun will change.

It can mean any of those, depending on context.

Common possibilities include:

• exercise
• practice
• drill
• training

So Æfingin hjálpar mér að muna reglurnar could naturally refer to a specific exercise, a practice activity, or a drill that helps the speaker remember the rules.

This sentence has a very normal word order:

• Æfingin = subject
• hjálpar = finite verb
• mér = indirect object
• að muna reglurnar = infinitive phrase

So the structure is basically:

Subject + Verb + Object + Infinitive phrase

It is also a good example of Icelandic verb-second behavior: the finite verb hjálpar comes early in the clause, in the usual main-clause position.

You would usually say:

Æfingar hjálpa mér að muna reglurnar.

Changes:

• æfingin → æfingar
• hjálpar → hjálpa

That is because the subject becomes plural, so the verb also becomes plural.

If you wanted a more general idea like Practicing helps me remember the rules, another natural option is:

Að æfa hjálpar mér að muna reglurnar.