| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back [prep] the main [noun] | 69 |
|
| 2 | back [prep] the main [noun sg] | 69 |
|
| 3 | back [prep] the main [noun] | 69 |
|
| 4 | back to the main [noun] | 28 |
|
| 5 | back to the main [noun] | 28 |
|
| 6 | back [prep] the main road | 28 |
|
| 7 | back [prep] the main road | 28 |
|
| 8 | back from the main [noun] | 15 |
|
| 9 | back from the main [noun] | 15 |
|
| 10 | back in the main [noun] | 7 |
|
| 11 | back into the main [noun] | 7 |
|
| 12 | back into the main [noun] | 7 |
|
| 13 | back in the main [noun] | 7 |
|
| 14 | back on the main [noun] | 5 |
|
| 15 | back on the main [noun] | 5 |
|
