| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [to-vb] [prep] the | 864 |
|
| 2 | [be] [v-ing] back [prep] the | 234 |
|
| 3 | [be] [v-ing] [to-vb] back [prep] | 59 |
|
| 4 | [v-ing] [to-vb] back [prep] the | 51 |
|
| 5 | [be] [to-vb] back [prep] the | 34 |
|
| 6 | [be] [v-ing] [to-vb] back the | 5 |
|
