Me siento cada vez más tranquilo cuando hablo en español.

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Breakdown of Me siento cada vez más tranquilo cuando hablo en español.

• en: in
• cuando: when
• español: Spanish

Questions & Answers about Me siento cada vez más tranquilo cuando hablo en español.

Why is it me siento instead of just siento?

Because the verb here is sentirse, which means to feel in the sense of your emotional or internal state.

• me siento tranquilo = I feel calm
• siento by itself usually means I feel/sense something, as in siento frío = I feel cold, or lo siento = I’m sorry

With an adjective like tranquilo, Spanish normally uses sentirse:

• Me siento tranquilo = I feel calm

So me is not optional here; it is part of the verb sentirse.

Is me siento tranquilo the same as estoy tranquilo?

They are similar, but not exactly the same.

• Estoy tranquilo = I am calm
• Me siento tranquilo = I feel calm

Estar describes a state.
Sentirse emphasizes how that state feels to you personally.

In this sentence, me siento sounds very natural because the speaker is talking about their growing comfort level from the inside.

What does cada vez más mean?