| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be so often the [noun sg] | 33 |
|
| 2 | is so often [art] [noun sg] | 31 |
|
| 3 | be so often [art] case | 28 |
|
| 4 | be so often a [noun sg] | 6 |
|
| 5 | was so often [art] [noun sg] | 6 |
|
