| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [is] [prep] [v-ing] | 1868 |
|
| 2 | [pron] [is] [pers pn] [prep] | 492 |
|
| 3 | [pron] [is] [pers pn] [v-ing] | 453 |
|
| 4 | [is] [pers pn] [prep] [v-ing] | 48 |
|
