| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [prep] be [vb pp] | 4685 |
|
| 2 | [prep] be [adv] [vb pp] | 3206 |
|
| 3 | is be [adv] [vb pp] | 195 |
|
| 4 | is [prep] be [adv] | 176 |
|
| 5 | is [prep] [adv] [vb pp] | 31 |
|
