é errado usar como o português e iniciar a frase com um verbo? Sim e não!
1. A correct English sentence must have a subject ( I, you, it ....)
For example:
'I am at the station' is a correct and complete sentence.
'Am at the station' is not a correct sentence, because it is not complete.
2. However, sometimes we use incomplete sentences when we are writing notes or informal messages. If you are sending a text message to your friend, it's ok to say
'Am at the station. Will phone you later.'
But remember - these are not complete grammatical sentences. You can write them in informal notes, but you don't say them. In spoken language, you must always use the subject ( I) .
I hope that helps.