| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [vb pp] a [noun] | 5467 |
|
| 2 | have [vb pp] a letter | 184 |
|
| 3 | [verb] [vb pp] a letter | 184 |
|
| 4 | had [vb pp] [art] letter | 75 |
|
| 5 | [vb past] [vb pp] a letter | 57 |
|
| 6 | had [verb] a letter | 54 |
|
