| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] be [v-ing] | 129252 |
|
| 2 | [pers pn] [modal v] be | 89423 |
|
| 3 | [modal v] be [v-ing] | 15842 |
|
| 4 | [pers pn] [modal v] [v-ing] | 78 |
|
