Initials g, k, h

In this lesson, we move further back in the mouth to learn the initials g, k, h. These are known as velar initials because they are produced using the back of the tongue against the soft part of the roof of the mouth (the soft palate, or velum). Compared to earlier initials like b, p, m, f (lips) and d, t, n, l (tip of the tongue), these sounds require you to control the back of your tongue more precisely.

As with other Mandarin stop consonants, the key distinction between g and k is aspiration, not voicing.

The initial g is unaspirated. To produce it, raise the back of your tongue to touch the soft palate, briefly stopping the airflow. Then release it gently without a strong burst of air. To English speakers, it may sound like a soft “g” or even close to a “k,” but the important thing is that there is no noticeable puff of air.

The initial k uses the same tongue position as g, but it is aspirated. When you release the sound, you push out a clear burst of air. If you place your hand in front of your mouth, you should feel this puff when saying kāi, meaning “to open.” This strong airflow is what distinguishes k from g in Mandarin.

The initial h is quite different from g and k. It is not a stop sound, but a fricative. Instead of completely blocking the airflow, you create a narrow space at the back of your mouth and let the air pass through, producing a soft friction sound. In Mandarin, h is pronounced further back than the English “h,” often with a slightly rough or breathy quality, similar to the “ch” sound in the Scottish pronunciation of “loch.”

Because all three initials are produced at the back of the mouth, learners sometimes find them harder to control at first. A useful way to practice is to focus on the feeling of the back of your tongue. For g and k, you should feel a clear contact and release; for h, you should feel a continuous flow of air without full closure.

It is also important to maintain a smooth connection between the initial and the final. Mandarin syllables are pronounced as one continuous unit, the sound should flow naturally into the vowel without a break.

To build accuracy, try practicing minimal pairs such as gā and kā to clearly feel the difference in aspiration, and compare kā with hā to notice the difference between a stop and a fricative. Repeating these sounds with all four tones will further strengthen your control.

Mastering g, k, h expands your ability to pronounce a wide range of Mandarin words clearly. Once you become comfortable with these back-of-the-mouth sounds, you will find it easier to handle more complex syllables and improve your overall fluency.