Ich ändere das Passwort regelmäßig und speichere es sicher.

and

Breakdown of Ich ändere das Passwort regelmäßig und speichere es sicher.

• ich: I
• es: it
• regelmäßig: regularly

Questions & Answers about Ich ändere das Passwort regelmäßig und speichere es sicher.

What does ändern mean in this context, and how is it different from wechseln?

ändern means “to change” in the sense of modifying or updating something (e.g. updating your password). wechseln also means “to change” or “to switch,” but it usually implies replacing one thing with another (like switching trains or clothes). With Passwort, Passwort ändern (“update your password”) is more idiomatic than Passwort wechseln.

Is ändern a separable verb or a regular/irregular verb?

ändern is a non-separable (untrennbar) weak (regular) verb that shows a stem-vowel change in the present tense:
• ich ändere
• du änderst
• er/sie/es ändert
It adds the normal endings of a regular verb, but the “a” changes to “ä” in the singular.

Why is das used before Passwort?

Passwort is a neuter noun in German, so it takes the definite article das. In this sentence it’s the direct object of ändere, so it’s in the accusative case—and neuter accusative is das as well.

What part of speech is regelmäßig, and why doesn’t it have an ending?

regelmäßig is an adverb here, meaning “regularly” or “on a regular basis.” Adverbs in German do not get adjective endings, so regelmäßig remains unchanged regardless of gender, number or case.