| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] be [art] [adv] difficult | 17 |
|
| 2 | go [prep] be [art] [adv] difficult | 5 |
|
| 3 | [v-ing] [prep] be [art] [adv] difficult | 5 |
|
| 4 | going [prep] be [art] [adv] difficult | 5 |
|
| 5 | [prep] be [art] [adv] difficult [noun] | 14 |
|
| 6 | [prep] be [art] [adv] difficult [noun sg] | 13 |
|
