Tomatoes are the plural form of tomato, which is a countable noun in English. When referring to more than one tomato, we use the plural form. The most common way to form the plural of a countable noun is by adding an “s” or “es” directly after the noun.

Example sentences:

1. We cut down and composted the spent vines of cucumbers, tomatoes, and other crops.
2. The shelves were stocked with various vegetables, including eggplants, cucumbers, cabbages, and tomatoes.
3. They had a variety of preserved foods, such as pickled cucumbers, jam, pickled berries, and tomatoes. They had everything you could think of.