| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] heading for | 6 |
|
| 2 | have [been] heading for | 6 |
|
| 3 | [vb past] [been] heading for | 5 |
|
| 4 | [been] heading for [art] | 5 |
|
| 5 | [been] heading for [art] | 5 |
|
