| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [vb pp] for several [noun] | 17 |
|
| 2 | had [vb pp] for several [noun pl] | 17 |
|
| 3 | had [vb pp] for several years | 12 |
|
| 4 | had [vb pp] for several year | 12 |
|
