| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be [vb pp] to be [v-ing] | 21 |
|
| 2 | [not/n't] be [vb pp] to be [v-ing] | 12 |
|
| 3 | not be [vb pp] to be [v-ing] | 12 |
|
| 4 | [adv] be said to be [v-ing] | 11 |
|
| 5 | [adv] be seen to be [v-ing] | 10 |
|
| 6 | not be [vb pp] to be [v-ing] | 10 |
|
