人の揚げ足を取るばかりじゃなく、もっと建設的な意見を言ってくれないかな。

tbd

All you ever do is nitpick. I wish you could say something more constructive.

建設的な提案だよ。

tbd

That's a constructive suggestion.

That's a constructive suggestion!

彼女が建設的な構想を持つ。

tbd

She has constructive ideas.

君の意見はとても建設的だ。

tbd

Your opinion is very constructive.