@learnativenglish: 3 adjective → noun patterns you NEED to know 👇 -th = rarest… these must be memorized strong → strength deep → depth -ness = the easiest & most common happy → happiness busy → busyness -ity = common but trickier Active → activity Real → reality Safe → safety Certain → certainty Possible → possibility Flexible → flexibility Specific → put your guess in the comments 🔁 Repeat these out loud to train your pronunciation 📌 Save to practice later #english #learnenglish #grammar #vocabulary #suffix