| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [verb] [to-vb] [prep] [noun sg] | 118 |
|
| 2 | had [vb pp] [to-vb] [prep] [noun sg] | 113 |
|
| 3 | had begun [to-vb] [prep] [noun] | 39 |
|
| 4 | [verb] begun [to-vb] [prep] [noun sg] | 23 |
|
| 5 | have begun [to-vb] [prep] [noun sg] | 23 |
|
| 6 | had begun [verb] [prep] [noun sg] | 18 |
|
| 7 | had begin [to-vb] [prep] [noun sg] | 17 |
|
| 8 | [vb past] begun [to-vb] [prep] [noun sg] | 17 |
|
