How clumsy of me to break the vase!

我打碎了这个花瓶，我是有多笨！

youdao

I spilt your coffee. Sorry—that was clumsy of me.

我弄洒了你的咖啡。对不起，我真是笨手笨脚的。

《牛津词典》

Whether from jealousy or fear of someone who looked so different, my older brothers sometimes teased me about my unpleasing skin, or made fun of my clumsy walk.

我的哥哥们，不知道对长相与众不同的人是出于嫉妒，还是出于害怕，时常会取笑我那看上去令人不适的皮肤，或我那笨拙的步伐。

youdao

Grey is the "must-have color for ovens, " it informed me, making a clumsy link between the appliance and the blockbuster trilogy.

WSJ: Tina Gaudoin on Style: Twenty Five Shades of You Know What��

His song had the rather clumsy title of I am I...or I am Me... or Me am I - doesn't really work well in English, does it?

BBC: Five minutes of Eurovision fame

It's set in the present, though that wasn't problematic for me, and fitted with a crucial plot twist that comes to feel clumsy, plus an ending that provides all-too-conventional uplift.

WSJ: 'Tsotsi' Is Transformed by Actor's Stunning Debut