| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [pron] is [adv] [adj] | 134 |
|
| 2 | [pron] [pron] is [adv] difficult | 20 |
|
| 3 | which [pron] be [adv] difficult | 12 |
|
| 4 | which [pron] [be] [adv] difficult | 12 |
|
| 5 | which [pron] is [adv] difficult | 12 |
|
| 6 | which [pron] [is] [adv] difficult | 12 |
|
