When we want to talk about an ongoing action or event, we use the present participle form of the verb. In this case, "beginning" is used to describe an action that is taking place at the present moment or in a continuous manner. For example, "She is beginning to understand the concept" or "The movie is beginning in 5 minutes".
The present participle form is created by adding "-ing" to the base form of the verb. However, there are some spelling rules we need to follow, such as dropping the final "e" in words like "hope" (becomes "hoping") and doubling the final consonant in words like "run" (becomes "running").
Overall, "beginning" is the correct present participle form of "begin" in English. It is essential to understand these forms to effectively communicate ongoing actions or events in the English language.