I don't know what "speack" is, but if you are asking about language of Bangladesh. It's Bengali.
Spanish.
Russian
yes
awaia
Greek.
yes
she could not speack
i don't know loser
Literary Arabic
If we speack about political or material power the word is "pouvoir". If we speack about nations (for exemple: the global superpowers) or about electric power the word is "puissance".
if you are avegeterian you can fly and speack to ducks
Brazil has 1 official language: Portuguese.