| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] often [vb pp] [prep] | 124 |
|
| 2 | [is] [adv] often [vb pp] [prep] | 112 |
|
| 3 | [is] so [adv] [vb pp] [prep] | 89 |
|
| 4 | [is] so [adv] [vb pp] [prep] | 89 |
|
| 5 | [be] so often [vb pp] [prep] | 39 |
|
| 6 | [is] so often [verb] [prep] | 22 |
|
| 7 | [is] so often [vb pp] [prep] | 21 |
|
| 8 | [is] so often [vb pp] [prep] | 21 |
|
| 9 | [is] so often [vb pp] [prep] | 21 |
|
