đang

While often introduced to beginners as the "present continuous" tense, đang is actually an aspect marker. This means it focuses on the process of the action, not the specific time it happens. Also, keep in mind that aspect markers are optional. If a time anchor (like bây giờ) or the general context already makes it obvious that an action is ongoing, native speakers frequently drop đang altogether.

You can use đang for past, present, or future continuous actions. However, past and future continuous actions require a specific moment in time or an interrupting action to anchor them (though this anchor can just be understood from the context, rather than stated in the sentence itself):

• Present: Tôi đang ăn. (I am eating.)
• Past: Lúc 10 giờ tối hôm qua, tôi đang ngủ. (At 10 PM yesterday, I was sleeping.)
• Future: Giờ này ngày mai, tôi đang làm việc. (At this time tomorrow, I will be working.)

Note that in everyday conversation, native speakers often avoid stacking particles like sẽ đang. Instead, the future continuous is simply formed with a future time anchor plus đang. However, sẽ đang is perfectly standard in formal writing and news broadcasts. You will also frequently hear vẫn đang, which is a very common extension meaning "still [verb]-ing".

To form the negative continuous, you can use đang không to mean you are currently in the state of not doing something (e.g., Tôi đang không làm việc - I am currently not working). In spoken Vietnamese, the highly common colloquial negative is không có đang (e.g., Tôi không có đang làm việc - I am not currently working). Note that không đang is generally considered clunky or unnatural by native speakers. To ask a yes/no question about an ongoing action, use the structure có đang ... không?. For example, Bạn có đang nghe không? (Are you listening?).

Additionally, đang can be used immediately before adjectives to describe a temporary, ongoing physical or emotional state. For example, Tôi đang mệt (I am feeling tired right now) or Trời đang nóng (It is hot right now). You will also frequently see đang used with static verbs like là (to be) and có (to have) to express temporary roles or current possessions, such as Anh ấy đang là giám đốc (He is currently the director) or Tôi đang có khách (I currently have guests). Another highly common pattern is đang ... dở, which means you are in the middle of doing something and haven't finished it yet (e.g., Tôi đang ăn dở - I am in the middle of eating).

Finally, note that đang cannot be used with instantaneous verbs or true achievements like tìm thấy (to find) or nhận ra (to realize). Because these actions happen in an instant, they cannot be in progress. To express a gradual process, you would instead use words like dần (gradually), as in dần nhận ra (gradually realizing).