| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [is] [v-ing] [pron] | 2068 |
|
| 2 | [noun] [is] [v-ing] back | 123 |
|
| 3 | [noun] [v-ing] [pron] back | 32 |
|
| 4 | [is] [v-ing] [pron] back | 30 |
|
