| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] [noun] be [v-ing] | 1964 |
|
| 2 | [prep] [art] [noun] had be | 1235 |
|
| 3 | [art] [noun] had be [v-ing] | 416 |
|
| 4 | [prep] [noun] had be [v-ing] | 60 |
|
