"I do not betray my brother!"

Translation: Eu nu îl trădez pe fratele meu!

[GregTener]

What does the "l" mean here?

[travel.linguist]

Substitutes the îl
Basically it's a contraction of "nu îl" to "nu-l"

[zj456]

Is the verb "to deceive" always used with the preposition "pe" ?

[Andrei926539]

No. That's the accusative case that needs "pe". A more simpler explanation: you use "pe" when you betray someone.

The present tense conjugation is the following.

Eu trădez

Tu trădezi

El/ea trădează

Noi trădăm

Voi trădați

Ei/Ele trădează.

Example. Eu trădez principiile comunismului. I betray the principles of communism. No "pe" needed. Hope that helps.

[A7vSw]

Can we say:eu nu il tradez pe fratul meu?