| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [vb pp] [conj] [adj] | 375 |
|
| 2 | is [adv] [vb pp] [conj] [adj] | 341 |
|
| 3 | [be] often [vb pp] [conj] [adj] | 84 |
|
| 4 | be often [vb pp] [conj] [adj] | 84 |
|
| 5 | is often [vb pp] [conj] [adj] | 55 |
|
| 6 | [is] often [vb pp] [conj] [adj] | 36 |
|
| 7 | is often [verb] [conj] [adj] | 36 |
|
| 8 | is often [vb pp] [conj] [adj] | 35 |
|
