| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [be] [adv] difficult | 57 |
|
| 2 | [verb] it [be] [adv] difficult | 57 |
|
| 3 | [verb] it be [adv] difficult | 57 |
|
| 4 | [verb] it [is] [adv] difficult | 47 |
|
| 5 | [verb] it 's [adv] difficult | 30 |
|
| 6 | [verb] it [be] very difficult | 28 |
|
| 7 | [vb base] it [be] [adv] difficult | 27 |
|
| 8 | [verb] it is [adv] difficult | 17 |
|
| 9 | think it [be] [adv] difficult | 11 |
|
| 10 | [verb] it was [adv] difficult | 10 |
|
| 11 | think it [be] [adv] difficult | 10 |
|
| 12 | [verb] it [was/were] [adv] difficult | 10 |
|
| 13 | say it [be] [adv] difficult | 9 |
|
| 14 | [vb past] it [be] [adv] difficult | 8 |
|
| 15 | know it [be] [adv] difficult | 8 |
|
| 16 | know it [be] [adv] difficult | 7 |
|
| 17 | [vb -s] it [be] [adv] difficult | 6 |
|
| 18 | [verb] it [be] more difficult | 6 |
|
| 19 | [v-ing] it [be] [adv] difficult | 5 |
|
| 20 | said it [be] [adv] difficult | 5 |
|
| 21 | [vb pp] it [be] [adv] difficult | 5 |
|
