ついていけない

can't keep up (with), can't keep up with

→ 付く
phrase Rare #22,341
can't keep up (with) Used both literally for being unable to follow someone physically and figuratively for being unable to keep up with a pace, trend, idea, or situation.
JA: 最近の技術の進歩にはついていけない。
EN: I can't keep up with recent technological advances.

最近では多くの老人が時勢についていけない

These days, many elderly people struggle to keep up with the times.

私はこんな流行の変化についていけない

I can't keep up with changes in trends like this.

君についていけない

I can't keep up with you.

phrase Rare #29,735
can't keep up with Used when you cannot physically keep up, understand someone's reasoning or pace, or go along with a plan or trend. It is the negative form of ついていく.
JA: 最近の技術の進歩にはついていけない。
EN: I can't keep up with recent technological advances.

彼女にはついていけない

I can't keep up with her.

彼の論理にはついていけない

I can't follow his logic.

供給需要ついていけない

Supply can't keep up with demand.

彼の給料でインフレついていけない

His salary can’t keep up with inflation.

トム論理にはついていけない

I can’t follow Tom’s logic.

あなたの計画にはついていけない

I can't keep up with your plan.