| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] forward to | 15 |
|
| 2 | [vb past] to look forward to | 14 |
|
| 3 | had [to-vb] forward to | 5 |
|
| 4 | began [to-vb] forward to | 5 |
|
