Ein regla er sú að við borðum saman á kvöldin.

to be

Breakdown of Ein regla er sú að við borðum saman á kvöldin.

• borða: to eat
• við: we
• saman: together

Questions & Answers about Ein regla er sú að við borðum saman á kvöldin.

Why is it ein regla and not einn regla?

The numeral “one” changes its form depending on the gender of the noun:

• einn – masculine
• ein – feminine
• eitt – neuter

The noun regla (rule) is feminine, so ein has to agree with it:

• ein regla = one rule
• einn stóll = one chair (masc.)
• eitt borð = one table (neuter)

What does regla mean, and what is its gender?

Regla means “rule” or “regulation.”

Its grammatical information:

• Gender: feminine
• Nominative singular: regla
• Definite form: reglan (the rule)

Because it is feminine, it takes ein (not einn, not eitt).

What does sú mean here, and why is it used?