The dialects of Micronesia, though grammatically alike, differ widely in their vocabularies.
If you can write concise, grammatically correct English, this is the route to go.
Pupils are beginning to use grammatically complex sentences, extending meaning.
If you do this, make certain to use an appropriate format and writing style and verify that everything in the letter is grammatically correct and that the spelling and punctuation are accurate.
Personally, there's nothing that dents my confidence more in an online business than poorly written, grammatically incorrect, misspelt copy.