| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [v-ing] [prep] | 19633 |
|
| 2 | [v-ing] [pers pn] [prep] | 16236 |
|
| 3 | was [v-ing] [pers pn] | 3805 |
|
| 4 | was [pers pn] [prep] | 622 |
|
