Etiam bona discipula interdum errat, sed mendum suum statim corrigit.

Here etiam most naturally means even:

• Etiam bona discipula interdum errat = Even a good student sometimes makes a mistake.

That said, etiam can also mean also or too in other contexts. Latin adverbs often depend on context for their best English translation. In this sentence, even fits because it highlights something slightly surprising: a good student can still make mistakes.

Bona discipula means good student with a feminine noun.

Grammar:

• discipula = student (feminine singular)
• bona = good (feminine singular)

Both words are:

• nominative
• singular
• feminine

They match because adjectives in Latin agree with the nouns they describe in:

• gender
• number
• case

So bona discipula is the subject of errat.

Latin word order is much freer than English word order. An adjective can come either before or after its noun:

• bona discipula
• discipula bona

Both can mean a good student.

Often the choice is about style, emphasis, or rhythm rather than a strict rule. So bona discipula is completely normal Latin.

Latin often leaves out subject pronouns because the verb ending already tells you the person and number.

• errat = she/he/it errs
• corrigit = she/he/it corrects

The ending -t shows third person singular. Because the subject is already clear from bona discipula, Latin does not need to add ea for she.

English usually needs a subject pronoun, but Latin often does not.

Interdum is an adverb meaning sometimes or from time to time.

It modifies errat:

• interdum errat = sometimes she makes a mistake

So it tells us how often the action happens.

The verb errare basically means to err, to be mistaken, or sometimes to wander depending on context.

In natural English, she errs is correct but sounds formal or old-fashioned. So learners are often shown a smoother English translation:

• errat = she makes a mistake
• or she is mistaken
• or she errs

All of these can fit, depending on context.

Errat is:

• present tense
• indicative mood
• active voice
• third person singular

It comes from errare.

So grammatically it means:

• she errs
• he errs
• it errs

In this sentence, because the subject is bona discipula, we understand she.

Sed is a conjunction meaning but.

It connects two contrasting ideas:

• Even a good student sometimes makes a mistake
• but she immediately corrects her mistake

So sed signals a contrast: yes, she makes mistakes, but she deals with them right away.

Mendum suum is in the accusative singular because it is the direct object of corrigit.

Breakdown:

• mendum = mistake, fault, error
• suum = her own, agreeing with mendum

Why accusative? Because corrigit is a transitive verb: she corrects something. That something is mendum suum.

Also note:

• mendum is neuter singular
• suum is also neuter singular accusative to match it

This is an important Latin point.

Suus, sua, suum is the reflexive possessive adjective. It refers back to the subject of its own clause.

So:

• mendum suum corrigit = she corrects her own mistake

If Latin used eius instead, it would usually mean:

• she corrects her mistake = someone else’s mistake

So suum is used because the mistake belongs to the same person who is doing the correcting.

Corrigit is:

• present tense
• indicative mood
• active voice
• third person singular

It comes from corrigere, meaning to correct.

So corrigit means:

• she corrects
• he corrects
• it corrects

Here it means she corrects, referring back to bona discipula.

Statim is an adverb meaning immediately or at once.

Latin adverbs can move around fairly freely, so several word orders would be possible. In this sentence:

• mendum suum statim corrigit

the adverb sits close to the verb and naturally emphasizes the speed of the correction.

English word order is much more fixed, but Latin relies more on endings than position to show grammar. So placement often affects emphasis more than basic meaning.