When we're about to do something, we often use the phrase "on the point of doing something." However, there are several synonyms that convey a similar meaning. One common phrase is "on the verge of doing something." This implies that we are very close to taking action. Another option is "about to do something." This suggests that we are at the moment of decision and ready to act. "Close to doing something" is another synonym that emphasizes the proximity of our impending action. Whichever phrase you choose, it's clear that you're about to take action and that the moment of decision is near.