Many students of English language have difficult moments when they use their speaking ability and it seems to be quite normal. Pronunciation is not a simple thing. There are some sounds that we can´t find  in our  language and  sometimes we got confused about it. Vowels ,consonants and diphtongues  need more attention when someone is learning a new language. For example, we don´t have the sound of the letters ‘’th’’ in Portuguese so they must be learned as new sounds. The same to the famous schwa ‘’ə’’ and so on .

Well, Here we have a vídeo talking about pronunciation. Feel free to watch and improve your speaking skills about phonetic sounds of American English.