N2 — outside your level filter
understand + is in the process of
wakari tsutsu aru
is in the process of; is gradually becoming — a change still under way, viewed from outside
meaning: be gradually understanding
都市の人口は年々増えつつある。
toshi no jinkou wa nennen fue tsutsu aru.
The city's population is gradually increasing year by year. neutral
工事は順調に進みつつある。
kouji wa junchou ni susumitsutsu aru.
The construction is proceeding smoothly. neutral