| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to be | 12577 |
|
| 2 | [vb pp] to be [v-ing] | 1228 |
|
| 3 | be [vb pp] to [v-ing] | 1051 |
|
| 4 | be to be [v-ing] | 39 |
|
