| 如何HSK 5 | rú hé | how; what way; what | |
| 任何HSK 4 | rèn hé | any; whatever; whichever; whatsoever | |
| 为何 | wèi hé | why | |
| 何必HSK 5 | hé bì | there is no need; why should | |
| 何况HSK 5 | hé kuàng | let alone; to say nothing of; besides; what's more |
| 1 | How to manage your time efficiently? | |
| 2 | How to protect the environment? | |
| 3 | How to study more effectively? | |
| 4 | He teaches me how to swim. | |
| 5 | She knows how to make a cake. |