| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [v-ing] [prep] | 1919 |
|
| 2 | be [v-ing] on [prep] | 1394 |
|
| 3 | had be [v-ing] on | 101 |
|
| 4 | had be on [prep] | 5 |
|
