| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] back a | 53 |
|
| 2 | [be] [v-ing] back a | 31 |
|
| 3 | [was/were] [verb] back a | 18 |
|
| 4 | [be] [vb pp] back a | 17 |
|
| 5 | [be] going back a | 16 |
|
| 6 | [be] go back a | 16 |
|
| 7 | [am/are] [verb] back a | 12 |
|
| 8 | was [verb] back a | 10 |
|
| 9 | [is] [verb] back a | 9 |
|
| 10 | be [verb] back a | 8 |
|
| 11 | [be] [verb] back a | 8 |
|
| 12 | were [verb] back a | 8 |
|
| 13 | 'm [verb] back a | 7 |
|
| 14 | 's [verb] back a | 6 |
|
| 15 | [be] [to-vb] back a | 5 |
|
