| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [v-ing] [prep] | 4039 |
|
| 2 | [modal v] be [v-ing] [num ord] | 26 |
|
| 3 | be [v-ing] [prep] [num ord] | 21 |
|
| 4 | [modal v] be [prep] [num ord] | 20 |
|
