| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be [adv] | 16146 |
|
| 2 | to be [v-ing] | 7573 |
|
| 3 | be [v-ing] [adv] | 2368 |
|
| 4 | to [v-ing] [adv] | 537 |
|
