| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is often [adj] [verb] | 270 |
|
| 2 | is often [adj] [verb] | 242 |
|
| 3 | is [adv] sufficient [verb] | 109 |
|
| 4 | is [adv] sufficient [verb] | 44 |
|
| 5 | [be] often sufficient [verb] | 8 |
|
| 6 | be often sufficient [verb] | 8 |
|
| 7 | [is] often sufficient [verb] | 5 |
|
| 8 | is often sufficient [verb] | 5 |
|
| 9 | is often sufficient [verb] | 5 |
|
