A2 Grammar lessons cover the rules, patterns, and structures you need at the A2 Elementary level. Each lesson explains a grammar point with clear examples, common mistakes to avoid, and practice opportunities. Topics are ordered to build on each other so you can work through them step by step.
Quick Answer The plural of vortex is vortices or vortexes. Both are correct. “Vortices” is more common. One: a vortex More than one: two vortices (or two vortexes) Vortex, Vortices, Vortexes — See the Pattern Look at these sentences. Can you see the pattern? Did you notice? For one, you say vortex. For more than…
Quick Answer The plural of volcano is volcanoes. The spelling “volcanos” also exists, but volcanoes is the preferred form. One: There is a volcano on that island. More than one: There are many volcanoes in the Pacific. Volcano Becomes Volcanoes — See the Pattern Look at these words. Can you see what happens? Did you…
Quick Answer The plural of wharf is wharves or wharfs. Both are correct. A wharf is a place next to water where boats stop to load and unload things. One: The boat stopped at the wharf. More than one: The city has many wharves along the river. Wharf Becomes Wharves — See the Pattern Look…
Quick Answer The plural of virus is viruses. Just add -es to the end. For example: “There are many viruses that cause colds.” Virus or Viruses — See the Pattern Look at these sentences. Can you see how the word changes? Did you see the pattern? When there is one, we say virus. When there…
Quick Answer The plural of vertex is vertices. You can also say vertexes, but vertices is much more common. For example: “A triangle has three vertices.” Vertex, Vertices — See the Pattern Look at these sentences. Can you see how the word changes? Did you see the pattern? When there is one point, we say…
Quick Answer The plural of tuna is tuna. The word does not change. One tuna, ten tuna — always the same. One: I caught a tuna this morning.Many: We caught five tuna this morning. One Tuna, Two Tuna — See the Pattern Look at these words. Can you see what happens? Did you see the…
Quick Answer The plural of trout is trout. The word does not change. One trout, ten trout — always the same. One: I caught one trout in the river.Many: I caught five trout in the river. One Trout, Two Trout — The Word Never Changes Look at these words. Can you see what happens? Did…
Quick Answer The plural of tooth is teeth. One tooth, two teeth. Do not add -s — “tooths” is not correct. Tooth and Teeth — See the Pattern Look at these sentences. Can you see when we use tooth and when we use teeth? Did you see the pattern? We use tooth for one, and…
Quick Answer The word trousers is always plural. You cannot say “a trouser.” Say “a pair of trousers” for one and “pairs of trousers” for more than one. Always use a plural verb: “My trousers are blue.” Trousers, Jeans, Shorts — See the Pattern Some clothes are always plural in English. Read these sentences: Did…
Quick Answer The plural of tomato is tomatoes. The spelling “tomatos” is not correct. One: I need one tomato for the sandwich. More than one: We bought six tomatoes at the shop. Tomato Becomes Tomatoes — See the Pattern Look at these words. Can you see what happens? Did you see the pattern? These words…
