| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [vb pp] [prep] [art] [adj] period | 18 |
|
| 2 | had [vb pp] [prep] [art] [adj] period | 18 |
|
| 3 | had [vb pp] [prep] a [adj] period | 9 |
|
| 4 | had [vb pp] [prep] the [adj] period | 9 |
|
| 5 | had [vb pp] [prep] the [adj] period | 9 |
|
| 6 | had [vb pp] [prep] a [adj] period | 8 |
|
