3週6日目 上がる一方だ
Development・time・result
接続：V辞書＋ばかりだ
keep moving in that direction
注意 / Note：一方だ／ばかりだ says the trend continues; つつある describes an ongoing process of change and favors writing.
比較 / Compare：Same article: 〜一方だ／〜つつある. These models are often mistakenly chosen for each other — carefully read the 接続 and nuances above and then decide.
よく出る形 / Common form：動辞書形＋ばかりだ。Close in meaning to 〜一方だ but leans towards BAD and has a complaining tone.
病状は悪くなるばかりだ。
The illness only gets worse.
仕事は増えるばかりだ。
Work keeps increasing.
手を打たなければ、状況は悪化するばかりだ。
If we don't take action, the situation will only get worse.