| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [v-ing] [adv] [pron] | 119 |
|
| 2 | [vb mod] be [verb] [adv] their | 21 |
|
| 3 | [vb mod] [be] [v-ing] [adv] their | 17 |
|
| 4 | [modal v] be [v-ing] [adv] their | 17 |
|
