| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [v-ing] [prep] [verb] | 1422 |
|
| 2 | 's [v-ing] [prep] [vb infin] | 1359 |
|
| 3 | [be] [v-ing] [prep] happen | 110 |
|
| 4 | be [v-ing] [prep] happen | 110 |
|
| 5 | [is] [v-ing] [prep] happen | 96 |
|
| 6 | 's [v-ing] [prep] happen | 92 |
|
| 7 | 's [verb] [prep] happen | 91 |
|
