If your train the parrot to say hello then yes. This can be accomplished by repeating the word around the bird and rewarding it with a treat when it says it.
hi,hello,birdy.
Parrots mimic what they hear, so if you tell your parrot Hello a lot he will start saying hello back. You can even go as far as training your parrot to say a certain work for a certain thing, so in other words if you say "Food" before putting food in the cage your parrot will come to know that that sound means food is on the way and he will start asking. That being said you can train your parrot to speak sentences but it's doubtful that he will know what he's saying, he's just copying you
You say "hello" in English.
PARROT PEAHEN
every day for about 30 min say hello and good bye and when they learn that then they will lean any thing you say easy. But you have to do it for about 20 days
Say Hello to Rosita!
halito is how you say hello and how to say hello how are you is Halito, Chim Achukma?
In Filipino, you say "hello" as "kamusta."
This is how you say hello in Turkish: Merhaba = Hello
Crocodiles do NOT say hello.
In Neapolitan, you say "ciao" to say hello.
In Paiute, you can say "Kwai" to say hello.