| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we have had a [noun] | 229 |
|
| 2 | [pron] have had a letter | 22 |
|
| 3 | we have [verb] a letter | 18 |
|
| 4 | we have [vb pp] a letter | 18 |
|
| 5 | we have had [art] letter | 6 |
|
| 6 | we have had [art] letter | 6 |
|
| 7 | we [verb] had a letter | 5 |
|
| 8 | we have had a letter | 5 |
|
| 9 | we have have a letter | 5 |
|
