| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [adv] | 33174 |
|
| 2 | be [v-ing] [adv] | 4635 |
|
| 3 | be [vb pp] [v-ing] | 1627 |
|
| 4 | [vb pp] [v-ing] [adv] | 1092 |
|
