| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] | 7202 |
|
| 2 | [v-ing] [prep] [adv] | 4854 |
|
| 3 | be [v-ing] [adv] | 2368 |
|
| 4 | be [prep] [adv] | 1070 |
|
