| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is often [adj] [verb] | 242 |
|
| 2 | is often [adj] [to-vb] | 240 |
|
| 3 | is [adv] [adj] to determine | 56 |
|
| 4 | is [adv] [adj] to determine | 41 |
|
| 5 | be often [adj] to determine | 8 |
|
| 6 | [be] often [adj] to determine | 8 |
|
| 7 | is often [adj] to determine | 7 |
|
| 8 | [is] often [adj] to determine | 7 |
|
| 9 | is often [adj] to determine | 7 |
|
| 10 | is often [adj] determine | 7 |
|
