Despite what it might seem like based on the text messages you receive from your friends, or perhaps precisely because of that, good grammar is more important than it's ever been before, and 'Perfect Tense' is a grammar checker that uses AI to keep people's grammar immaculate. The program not only makes sure that users write with pristine sentences, but it also offers websites and apps an API so that they can implement the powerful system directly.
Perfect Tense handles all sorts of common grammar and writing mistakes, including spelling, punctuation, verb agreement, determiner usage (e.g. when to use definite and indefinite articles), general word usage, and more. The AI behind the system is constantly improving as well, so people of English proficiency levels can confidently use the grammar checker to fix their writing.