The forms of all these verbs predominantly follow the basic root variations, i.e., unstressed and stressed variations of the root, however, a good number of these have other root fixes (usually spelling changes to maintain pronunciation). Some of the forms are irregular and must be memorized.

VIDEO LESSON - Review + Vocabulary Megalist at 7 min 42 sec

PRACTICE - SET #1

VOCABULARY snacking, starting, understanding, preferring, suggesting, losing

PRACTICE - SET #2

VOCABULARY thinking, closing, wanting, requiring, coming here, having