| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back [prep] the last [noun] | 21 |
|
| 2 | [v-ing] back [prep] the last [noun] | 8 |
|
| 3 | date back [prep] the last [noun] | 6 |
|
| 4 | look back [prep] the last [noun] | 5 |
|
| 5 | back [prep] the last [adj] [noun] | 16 |
|
| 6 | back [prep] the last [num] [noun] | 11 |
|
| 7 | back [prep] the last [noun] [noun] | 5 |
|
| 8 | back [prep] the last [noun sg] [noun] | 5 |
|
| 9 | back [prep] the last [noun] [noun sg] | 5 |
|
| 10 | back [prep] the last [noun] [noun] | 5 |
|
| 11 | back [prep] the last [noun] [conj] | 5 |
|
