Types of English Certificates. Which one suits you? February 27, 2022 In Learn English Once #cambridge, certifications, English exams, finally, IELTS, TOEFL, TrinityCambridge, IELTS, TOEFL, Trinity... The number of English certifications there are can drive us crazy. Which one is best for you? Here I leave you a very complete list with the main characteristics of each of them.