The most commonly used adjective is good. Of course, different sources come up with different answers for this, but “good” is usually listed among the most common adjectives. Syllable Count gives it the number one spot on their list, while Word Frequency Data places it below a few adjectives such as other and new.

Some of the oldest words in the English language are still very common today. They include I, love, black, mother, fire, hand and hear. Many of these words date back from before the year 900.

The shortest, non-elliptical sentence is “I am.” A non-elliptical sentence is a sentence that doesn’t leave anything out. For example, the command “Go!” may seem like the shortest sentence, but it’s elliptical. It leaves out the pronoun “you.” Technically, it would be “You go!” which is two letters longer than “I am.”

The most commonly used letter in English is “E.” According to Oxford Dictionaries, “E” is the most commonly used English letter, and “Q” is the letter used the least. To put it in perspective, “E” is 56 times more common than “Q.”

The average English speaker only knows between 20,000 and 30,000 words.

There are approximately 1.5 billion English speakers in the world. That’s 20 percent of the world’s population! About 600 to 700 million of those are non-native speakers.