| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] to be | 12807 |
|
| 2 | [v-ing] to be | 8901 |
|
| 3 | [adv] [v-ing] to | 5408 |
|
| 4 | [adv] [v-ing] be | 659 |
|
