verbrennen
to burn
To be destroyed by fire or to destroy something by fire.
Er verbrannte alle alten Liebesbriefe im Kamin.
He burned all the old love letters in the fireplace.

to burn
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to burn
To be destroyed by fire or to destroy something by fire.
Er verbrannte alle alten Liebesbriefe im Kamin.
He burned all the old love letters in the fireplace.

'Verbrennen' (to burn) is an inseparable verb. The prefix 'ver-' remains firmly attached to the verb stem 'brennen' (to burn) in all tenses and sentence constructions.
Das Feuer hat das ganze Haus verbrannt.
The fire burned the whole house.
The perfect tense is formed with 'haben' (to have) when it describes an active action with an accusative object. It is formed with 'sein' (to be) when it describes a process or a change of state of the subject.
Ich habe die alten Zeitungen verbrannt.
I burned the old newspapers.
When someone injures a specific body part, the reflexive form 'sich verbrennen' (to burn oneself) is often used with a dative object for the body part: 'sich die Hand verbrennen' (to burn one's hand).
Vorsicht, du verbrennst dir die Finger an der Kerze!
Careful, you’ll burn your fingers on the candle!
In the sense of 'using up energy', 'verbrennen' (to burn) is frequently combined with 'Kalorien' (calories), 'Fett' (fat), or a type of fuel such as 'Benzin' (gasoline) or 'Diesel' (diesel).
Beim Joggen verbrennt man viele Kalorien.
You burn a lot of calories while jogging.
to extinguish / delete
'löschen' and 'verbrennen' are opposites when it comes to fire. 'löschen' means to stop a fire or blaze. 'verbrennen' means that something is destroyed by fire, or that someone destroys something with fire. If an object is burning, it can 'verbrennen'; if someone stops the fire, they 'löschen' it. So the difference is: 'verbrennen' describes the effect of the fire, while 'löschen' ends the fire.

Wegen der starken Hitze verbrennen die alten Papiere im Ofen sehr schnell.
Because of the intense heat, the old papers burn very quickly in the oven.
Der Nachbar löscht die Flammen mit einem Eimer Wasser.
The neighbor puts out the flames with a bucket of water.