| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv] | 4635 |
|
| 2 | be heard [adv] | 95 |
|
| 3 | be heard [v-ing] | 77 |
|
| 4 | heard [v-ing] [adv] | 20 |
|
