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"Hablar por teléfono" is an intransitive verb phrase which is often translated as "to talk on the phone", and "Luisa" is a proper noun which is often translated as "Louise". Learn more about the difference between "hablar por teléfono" and "Luisa" below.
hablar por teléfono(
ah
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blahr
pohr
teh
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leh
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foh
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noh
)An intransitive verb phrase is a phrase that combines a verb with a preposition or other particle and does not require a direct object (e.g., Everybody please stand up.).
a. to talk on the phone
Prefiero hablar por teléfono que mandar mensajes.I prefer to talk on the phone rather than text.
b. to speak on the telephone
Si necesitas hablar por teléfono con alguien, sabes que me puedes llamar a cualquier hora.If you need to speak on the telephone with someone, you know you can call me at any time.