Which one of these sentences are correct?
it has been already completed successfully
it has already been completed successfully

Question

Which one of these sentences are correct?
it has been already completed successfully
 it has already been completed successfully

Answer

The second is correct. You could also say 'it has been successfully completed already' or 'it has already been successfully completed'. To me, that last variant sounds the most natural.

Answer

Well, if memory serves me well, we put adverbs 'already' before the main verb, which is 'been'. So, the second sentence is correct.
Edit: on the second thought, both sentences are correct, but the second one is more common.
I hope this helps.

Answer

First one ☝[emoji]

No pierdas la oportunidad de aprender un idioma desde la comodidad de tu casa. ¡Explora nuestra selección de profesores de idiomas con experiencia e inscríbete ya en tu primera clase!