| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adv] difficult to get [noun] | 12 |
|
| 2 | it be [adv] difficult to get [noun] | 12 |
|
| 3 | it be difficult to get [adj] [noun] | 7 |
|
| 4 | it be difficult to get [art] [noun] | 6 |
|
| 5 | it be difficult to get [art] [noun] | 6 |
|
| 6 | it be difficult to get [noun] [prep] | 7 |
|
| 7 | it be difficult to get [noun] [prep] | 7 |
|
