| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [adv] [vb pp] to | 297 |
|
| 2 | is [adv] [adv] [vb pp] to | 271 |
|
| 3 | is [adv] often [vb pp] [prep] | 111 |
|
| 4 | is [adv] often [vb pp] [prep] | 111 |
|
| 5 | be [adv] often [vb pp] to | 30 |
|
| 6 | [be] [adv] often [vb pp] to | 30 |
|
| 7 | [is] [adv] often [vb pp] to | 17 |
|
| 8 | is [adv] often [vb pp] to | 17 |
|
| 9 | is [adv] often [vb pp] to | 16 |
|
| 10 | is [adv] often [vb pp] to | 16 |
|
| 11 | is [adv] often [verb] to | 16 |
|
