When the subject is a plural noun (MORE THAN ONE), the verb must be in plural form.
Examples:
Qihah and Ainul like to make pancakes. They love making pancakes. The two girls carefully make pancakes in their kitchen. Their friends enjoy eating their pancakes so much. Many people buy their pancakes when they are selling them.
- first sentence: plural noun (Qihah and Ainul) + verb (like); second sentence: plural pronoun (They) + verb (love); third sentence: plural noun (The two girls) + verb (make) [with an adverb 'carefully' in between]; fourth sentence: plural noun (friends) + verb (enjoy); fifth sentence: plural noun (Many people) + verb (buy)..... plural pronoun (they) + verb (are selling)