| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [is] [vb pp] [adv prt] | 210 |
|
| 2 | [det] [is] often [vb pp] | 73 |
|
| 3 | [is] often [vb pp] [adv prt] | 50 |
|
