| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] know [subord] | 85 |
|
| 2 | is not know [subord] | 80 |
|
| 3 | is [not/n't] know [subord] | 80 |
|
| 4 | is not know [subord] | 79 |
|
| 5 | is [adj] know [subord] | 25 |
|
| 6 | is [adj] know [subord] | 25 |
|
| 7 | is difficult know [subord] | 14 |
|
| 8 | is difficult know [subord] | 14 |
|
| 9 | is impossible know [subord] | 5 |
|
| 10 | is [adv] know [subord] | 5 |
|
| 11 | is impossible know [subord] | 5 |
|
| 12 | is know [adv] [subord] | 8 |
|
| 13 | is know [adv] [subord] | 8 |
|
