| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be [vb pp] to be | 325 |
|
| 2 | be [vb pp] to be [v-ing] | 159 |
|
| 3 | [adv] [vb pp] to be [v-ing] | 151 |
|
| 4 | [adv] be [vb pp] to [v-ing] | 31 |
|
