| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] hard [verb] | 302 |
|
| 2 | it [is] [adv] hard [verb] | 225 |
|
| 3 | it [is] sometimes [adj] [verb] | 113 |
|
| 4 | it [be] sometimes hard [verb] | 15 |
|
| 5 | it [is] sometimes hard [verb] | 10 |
|
| 6 | [pron] [is] sometimes hard [verb] | 10 |
|
| 7 | [pers pn] [is] sometimes hard [verb] | 10 |
|
| 8 | it [is] sometimes hard [verb] | 10 |
|
