No idea how to answer here, all I see is the add comment button, so here it is. In Brazil, o senhor - is the same as usted in spanish, sie in german, etc. it's how you speak to someone who you don't know at all and is older, or a customer, or in very traditional families, how family members talk to their elders. você - you use with most people, with your parents, your colleagues at school (with whom you have less contact), work, strangers (from children to say... people in their 40s). that prevails in most of Brazil, except in the southernmost states and also northeastern states, where they use more TU. tu - except in the areas listed above, you only use TU to your siblings, cousins, best friends, etc. ie. someone you have regular contact with. VERY informal.

gratis

"Washington is the seat of government of the US" = "Washington é a sede do governo dos EUA" Acho que no terceiro caso também se traduziria como "sede" No caso da segunda frase, nunca vi a palavra "seat" usada neste contexto, mas em português seria algo como "lugar de aprendizagem", a julgar pelo sentido.

intenta tres veces w punto cuevana punto tv. no sé si todavía está activo

Se você quer a tradução destas expressões para o Português, aqui está: "Ele tomou o poder em (através de) um golpe de estado" coup = palavra inglesa emprestada do francês, significa "golpe".