| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] is [adv] difficult to say | 17 |
|
| 2 | it is [adv] difficult to say | 17 |
|
| 3 | [pron] is [adv] difficult to say | 17 |
|
| 4 | it is [adv] difficult to say | 17 |
|
| 5 | is [adv] [adv] difficult to say | 6 |
|
| 6 | is [adv] [adv] difficult to say | 5 |
|
| 7 | is [adv] [adv] difficult to say | 6 |
|
| 8 | is [adv] [adv] difficult to say | 6 |
|
