Tell about a trip: where, with whom, how you travelled, what you did.

Use ĐÃ for the past, but drop it once a time word makes the past clear.

Transport: đi bằng máy bay, đi bằng tàu, đi bằng xe máy — but walking is ĐI BỘ with no BẰNG.

Watch out: choose your pronouns before you start writing and keep them consistent. Switching between TÔI and MÌNH halfway makes the text feel unstable.