| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] back [prep] [art] [adj] [noun] | 320 |
|
| 2 | [v-ing] back [prep] [art] [adj] [noun sg] | 259 |
|
| 3 | [verb] back [prep] [art] [adj] century | 113 |
|
| 4 | [v-ing] [adv] [prep] [art] [adj] century | 62 |
|
| 5 | [v-ing] [adv prt] [prep] [art] [adj] century | 43 |
|
| 6 | [v-ing] back [prep] [art] [adj] century | 41 |
|
| 7 | [v-ing] back [prep] [art] [adj] century | 41 |
|
| 8 | [v-ing] back [prep] [art] [adj] century | 41 |
|
