THE username does not fit the formet

The username you have entered is not available. the food is not fit to eat One size does not fit 请翻译"Does the key fit to the cock?" The future does not The username contains forbidden characters. The username is already taken My ISP does not require a username and password是什么意思 Does not have the language Ｔhe future does not call. if i think it does not fit 4.He is not fit for the job both ______.