Dismay and bother? Are this words synonyms?

I'm gonna or I gonna? (Do I have to write "to be" verd while useing gonna?

Hi everyone! I have a question for ya! Can I say: "This road banches into to streets"

What is the difference? Between the words "sustain" and "support"?

Hi everyone! I have a question for you! (dazzling) Can I say: This girl has a dazzling beauty or She dazzled me with her beauty?

Guys, can anyone explain the differences between this words? (defeat) What are the differences between the words defeat, demolish and destroy?

Which preposition I have to use in this case? I need a room with view on (or to, at) garden.

Can you justify your point of view? Can I use the word "justify" in this content?

Guys, what is the difference between "appoint and designate"?