The modal verb 識 sik1 means ‘to know how to’. We put a verb for a skill or an activity after 識 sik1.

We put 唔 m4 (‘not’) before 識 sik1 to negate 識 sik1.

We use the X-not-X construction to form yes-no questions with 識 sik1. Notice X will be 識 sik1 instead of the verb behind it.

To answer the question, we can give a long answer or a short answer. We give a short answer more often.