| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [been] [v-ing] | 1004 |
|
| 2 | [verb] [been] [v-ing] about | 414 |
|
| 3 | [modal v] [verb] [v-ing] about | 52 |
|
| 4 | [modal v] [verb] [been] about | 18 |
|
