Verbs cannot end in -ly. Words ending with -ly are mostly Adverbs.
friendly
correctly
Common words that end in "ly" include quickly, slowly, happily, and simply.
Most of those words will be adverbs.
RAM-BUNC-TIOUS-LY
yearly
zealously
xerographically
xerographically
dailydulyonly
Words that end in "ly" are called adverbs, which are used to modify verbs, adjectives, or other adverbs. Adverbs describe how, when, where, or to what extent an action is performed.