| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [adv] thought to be | 42 |
|
| 2 | are now thought to be | 10 |
|
| 3 | are also thought to be | 7 |
|
| 4 | are generally thought to be | 6 |
|
| 5 | are still thought to be | 5 |
|
