| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is estimated that [adv] | 40 |
|
| 2 | estimated that [adv] [num] | 34 |
|
| 3 | is estimated that [num] | 24 |
|
| 4 | is that [adv] [num] | 22 |
|
