| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [art] [noun] | 21013 |
|
| 2 | be [v-ing] [art] [noun sg] | 17890 |
|
| 3 | be [verb] [art] back | 17 |
|
| 4 | be [v-ing] [art] back | 12 |
|
| 5 | be [v-ing] [art] back | 11 |
|
| 6 | [be] [v-ing] [art] back | 11 |
|
