because its a small word it helps to ask questions and it can be used in all sorts of sentences can is a very small word with only three characters it can also be used in essay writing and in compositions and can was the first word I learned after alphabets can is probably my favourite word because my kinder garden teacher who was my mother's best friend and my teacher ,when I first learned the word can I was so happy that I learned a new word and was able to make sentence from can