| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [pron] [v-ing] [pers pn] [prep] | 12 |
|
| 2 | is [pers pn] [v-ing] [pers pn] [prep] | 6 |
|
| 3 | is [indef pn] [v-ing] [pers pn] [prep] | 5 |
|
