| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be often [verb] [prep] [prep] | 12 |
|
| 2 | it be often [vb pp] [prep] [prep] | 12 |
|
| 3 | it be often [verb] [prep] [prep] | 12 |
|
| 4 | it be often [verb] [prep] [prep] | 12 |
|
| 5 | it be often [verb] [prep] as | 10 |
|
| 6 | it be often [verb] to [prep] | 9 |
|
| 7 | it be often [verb] to [prep] | 9 |
|
| 8 | it be often referred [prep] [prep] | 8 |
|
| 9 | it be often refer [prep] [prep] | 8 |
|
| 10 | it is often [verb] [prep] [prep] | 6 |
|
