我没用过这个英文

I'm rubbish

应该是I didn't try this.

I never play with it。

I am really a dumbass.

I‘ve never used knives or forks

I have never used knife and fork.

英语是：I'm really useless.句子解释：really 英[ˈri:əli] 美[ˈriəˌli, ˈrili] adv. 实际上; 真，真正; 实在，果真; 事实上; [例句]I'm very sorry. I really am我很抱歉。真的。useless 英[ˈju:sləs] 美[ˈjuslɪs] adj. 无用的，无效的; 无价值的; 差劲的; 不怎么样的; [例句]He realised that their money was useless in this country他意识到他们国家的货币在这个国家一文不值。

I don't play this。