| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] [noun] in | 485 |
|
| 2 | had be [v-ing] [prep] [noun] | 400 |
|
| 3 | had be [prep] [noun] in | 46 |
|
| 4 | had be [v-ing] [noun] in | 20 |
|
