| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is estimated [conj] [num] | 24 |
|
| 2 | it is estimated [conj] [noun] | 15 |
|
| 3 | is estimated [conj] [num] [noun] | 5 |
|
| 4 | it is [conj] [num] [noun] | 5 |
|
