| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [conj] [prep] | 561 |
|
| 2 | is [vb pp] [conj] [prep] | 481 |
|
| 3 | be estimated [conj] [prep] | 53 |
|
| 4 | [be] estimated [conj] [prep] | 53 |
|
| 5 | [is] estimated [conj] [prep] | 20 |
|
| 6 | is estimate [conj] [prep] | 18 |
|
