あなたは途中ずっと足元を見なければいけません。

you (referring to someone of equal or lower status); dear (what a wife calls a husband)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

on the way; en route; in the middle of; midway

continuously in some state (for a long time, distance); throughout; all along; the whole time; all the way; much (better, etc.); by far; far and away; far away; long ago; direct; straight

at one's feet; underfoot; one's step (as in "watch your step"); gait; pace; step; most recent; current; you; thou

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to see; to look; to watch; to view; to observe; to look over; to look on; to assess; to examine; to judge; to look after; to keep an eye on; to take care of; to view (e.g. flowers, movie); to try; to try out; to see that...; to find that...