please help me identify the verbals

Before New Year's Eve, my family and I talked about good foods to prepare. After discussing, my mother finally decided to order our meal online since no one could cook due to some businesses. The delivery finally arrived hours just before New Year. I was truly overwhelmed when I saw my Math Teacher in 5th Grade riding a tricycle. It turns out that she was the one with whom my mother ordered the food. After receiving the delivery and telling some greetings, I went back inside our house and prepared the meal. When the time was finally close, my sisters and I, sitting inside our room, were called by my mother to prepare for the celebration. We wore green clothes because my mother said that it is the year's lucky color.

I am so confused about 'what the verbals are' and 'how they specifically function in the statement,' so please someone help me. ;,[