| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] [to-vb] a | 1686 |
|
| 2 | is [adj] [to-vb] [adv] | 1173 |
|
| 3 | [adj] [to-vb] [adv] a | 156 |
|
| 4 | is [to-vb] [adv] a | 23 |
|
| 5 | is [adj] [adv] a | 22 |
|
