You've learnt the 9 tenses. Perfect Continuous Tenses are the last 3. 你已學過9隻時式，英文12隻最後嘅3隻係Perfect Continuous。
| Simple 簡單式 |
Continuous 進行式 |
Perfect 完成式 |
Perfect Continuous 完成進行式 |
|
| Present 現在 |
I eat 我食 |
I am eating 我食緊 |
I have eaten 我食咗 |
I have been eating 我一直食緊 |
| Past 過去 |
I ate (當時)我食 |
I was eating (當時)我食緊 |
I had eaten (當時)我食咗 |
I had been eating (當時)我一直食緊 |
| Future 將來 |
I will eat (到時)我會食 |
I will be eating (到時)我會係食緊 |
I will have eaten (到時)我會食咗 |
I will have been eating (到時)我會一直食緊 |
Perfect Continuous Tenses describe actions that last for a period of time into the past/present/future. 完成進行式:強調一直做緊嘅嘢維持到 過去/現在/未來 某個時間點。