| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a long [noun] | 3907 |
|
| 2 | [prep] a long [noun sg] | 3853 |
|
| 3 | [prep] a [adj] letter | 197 |
|
| 4 | [prep] a [adj] letter | 177 |
|
| 5 | [prep] [art] long letter | 10 |
|
| 6 | [prep] [art] long letter | 10 |
|
| 7 | [prep] a long letter | 9 |
|
| 8 | [prep] a long letter | 9 |
|
| 9 | [prep] a long letter | 9 |
|
| 10 | [prep] a long letter | 9 |
|
