Questions & Answers about Tôi đã sống ở đây lâu.
A word-by-word breakdown is:
- Tôi = I
- đã = a marker often used for a past or realized situation
- sống = live
- ở đây = here
- lâu = for a long time / long
So the structure is roughly:
- Tôi
- đã sống
- ở đây
- lâu
- ở đây
- đã sống
Vietnamese does not always match English word-for-word, so lâu at the end gives the idea of for a long time.
đã often marks that something is in the past or has already happened.
In this sentence, it helps show that the living situation is not just a general fact, but something that has been true up to a point in time. Depending on context, it can feel similar to English:
- I lived here for a long time
- I have lived here here for a long time
The important thing is that đã is not a perfect one-to-one match for any single English tense. It is an aspect/time marker, not a full tense system like English has.