| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be [vb pp] [v-ing] [adv prt] | 19 |
|
| 2 | to be seen [v-ing] [adv prt] | 9 |
|
| 3 | to be [vb pp] [v-ing] out | 6 |
|
