我当然喜欢你啊！

Wǒ dāngrán xǐhuān nǐ a!

Of course I like you!

当然可以！

Dāngrán kěyǐ!

Of course it's okay!

当然你不可以用计算机！

Dāngrán nǐ bù kěyǐ yòng jìsuànjī!

Of course you can't use a calculator!