| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be heading back [prep] [art] | 13 |
|
| 2 | [be] heading back [prep] [art] | 13 |
|
| 3 | before heading back [prep] [art] | 7 |
|
| 4 | [prep] heading back [prep] [art] | 7 |
|
| 5 | before heading back [prep] [art] | 7 |
|
| 6 | [was/were] heading back [prep] [art] | 7 |
|
| 7 | [prep] heading back [prep] [art] | 7 |
|
| 8 | heading back [prep] [art] [noun] | 31 |
|
| 9 | heading back [prep] [art] [noun sg] | 28 |
|
