German Phrase
Das trainiert deinen Bizeps und deine Unterarme.
Meaning
The sentence means “That trains your biceps and your forearms.” It is used to describe an exercise or activity that works both muscle groups at the same time.
When to use
Use this phrase when you want to point out that a specific workout (e.g., curls, pull‑ups, or a rowing machine) engages both the biceps and the forearms, especially when giving advice or explaining a training plan.
✦Grammar Breakdown
DastrainiertdeinenBizepsunddeineUnterarme.
Demonstrative pronoun "Das"
"Das" refers to a previously mentioned activity or exercise and functions as the subject of the sentence.
Verb conjugation "trainiert"
Present tense, third‑person singular of "trainieren" (to train).
Accusative masculine "deinen Bizeps"
"deinen" is the accusative form of the possessive "dein" for a masculine singular noun.
Noun gender "Bizeps"
"Bizeps" is a masculine noun (der Bizeps).
Coordinating conjunction "und"
Links two noun phrases of the same case.
Accusative plural "deine Unterarme"
"Unterarm" is masculine; in the plural the accusative article is "deine".
🗨In Conversation
Das trainiert deinen Bizeps und deine Unterarme.
That trains your biceps and your forearms.
Super, dann füge das zu deinem Trainingsplan hinzu!
Great, then add that to your training plan!
✕Common Mistakes
Das trainiert dein Bizeps und deine Unterarme.
The noun "Bizeps" is masculine and in the accusative case, so the possessive must be "deinen".
Das trainiert deinen Bizeps und deinen Unterarme.
In the plural accusative the possessive is "deine", not "deinen".
Das trainieren deinen Bizeps und deine Unterarme.
When the subject is "das" (neuter), the verb must be in third‑person singular: "trainiert".
↔Alternatives
Das stärkt deinen Bizeps und deine Unterarme.
That strengthens your biceps and your forearms.
Damit trainierst du deinen Bizeps und deine Unterarme.
With that you train your biceps and your forearms.
Diese Übung beansprucht deinen Bizeps und deine Unterarme.
This exercise works your biceps and your forearms.
Cultural Tip
In German fitness talk, "Bizeps" and "Unterarm" are common technical terms. Native speakers often use the verb "trainieren" for any kind of muscle work, while "stärken" emphasizes gaining strength. Remember that the possessive pronoun must match the case of the noun – a frequent slip for learners is saying "dein Bizeps" instead of the correct accusative "deinen Bizeps".