1. Tā nèige shíhou hái bù zhīdào néng bu néng lái. 他/他那个时候还不知道能不能来。 At that time he/she did not yet know whether or not he/she would be able to come. Cueshénme shíhou 什么时候 when Tā nèige shíhou hái bù zhīdào shénme shíhou lái. 他/他那个时候还不知道什么时候来。 At that time he/she did not yet know what time to come. 2. Tā nèige shíhou hái bù zhīdào shénme shíhou lái. 他/他那个时候还不知道什么时候来。 At that time he/she did not yet know when to come. Cuexīngqījǐ 星期几 what day of the/she week Tā nèige shíhou hái bù zhīdào xīngqījǐ lái. 他/他那个时候还不知道星期几来。 At that time he/she did not yet know what day of the/she week to come. 3. Tā nèige shíhou hái bù zhīdào xīngqījǐ lái. 他/他那个时候还不知道星期几来。 At that time he/she did not yet know what day of the week to come. Cuekéyi bu keyi 可以不可以 can? Tā nèige shíhou hái bù zhīdào kéyi bu keyi lái. 他/他那个时候还不知道可以不可以来。 At that time he/she did not yet know whether or not he/she could come. 4. Tā nèige shíhou hái bù zhīdào kéyi bu keyi lái. 他/他那个时候还不知道可以不可以来。 At that time he/she did not yet know whether or not he/she could come. Cuejǐyuè 几月 which month Tā nèige shíhou hái bù zhīdào jǐyuè lái. 他/他那个时候还不知道几月来。 At that time he/she did not yet know which month to come. 5. Tā nèige shíhou hái bù zhīdào jǐyuè lái. 他/他那个时候还不知道几月来。 At that time he/she did not yet know which month to come. Cuenéng bu néng 能不能 can? Tā nèige shíhou hái bù zhīdào néng bu néng lái. 他/他那个时候还不知道能不能来。 At that time he/she did not yet know whether or not he/she would be able to come. 6. Tā nèige shíhou hái bù zhīdào néng bu néng lái. 他/他那个时候还不知道能不能来。 At that time he/she did not yet know whether or not he/she would be able to come. Cuejǐhào 几号 which date Tā nèige shíhou hái bù zhīdào jǐhào lái. 他/他那个时候还不知道几号来。 At that time he/she did not yet know which date to come.