| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [vb -s] back to | 39 |
|
| 2 | [that] [vb -s] back to | 39 |
|
| 3 | that [vb -s] back to | 39 |
|
| 4 | [coord] [vb -s] back to | 38 |
|
| 5 | and [vb -s] back to | 35 |
|
| 6 | and [vb -s] back to | 35 |
|
| 7 | [conj] goes back to | 22 |
|
| 8 | [conj] dates back to | 14 |
|
| 9 | [conj] comes back to | 6 |
|
