| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] back [prep] the [adj] | 33 |
|
| 2 | which [vb -s] back [prep] the [adj] | 19 |
|
| 3 | which date back [prep] the [adj] | 17 |
|
| 4 | [pron] dates back [prep] the [adj] | 14 |
|
| 5 | which dates back [prep] the [adj] | 11 |
|
| 6 | which dates back [prep] the [adj] | 11 |
|
| 7 | which dates back [prep] the [adj] | 11 |
|
| 8 | which dates back [prep] [art] [adj] | 11 |
|
| 9 | which dates back [prep] the [adj] | 11 |
|
| 10 | which dates back [prep] [art] [adj] | 11 |
|
| 11 | which dates [adv prt] [prep] the [adj] | 11 |
|
| 12 | [Wh det] dates back [prep] the [adj] | 11 |
|
| 13 | which dates [adv] [prep] the [adj] | 11 |
|
