| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] to [be] | 3603 |
|
| 2 | [vb pp] to [be] [adv] | 2551 |
|
| 3 | is [vb pp] to [adv] | 191 |
|
| 4 | is [vb pp] [be] [adv] | 169 |
|
| 5 | is to [be] [adv] | 168 |
|
