| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [subord] it is often | 17 |
|
| 2 | [noun sg] [subord] it is often | 16 |
|
| 3 | [adv] [subord] it is often | 7 |
|
| 4 | [adv] [subord] it is often | 6 |
|
| 5 | [subord] it is [adv] often | 9 |
|
| 6 | [subord] it is [adv] often | 6 |
|
| 7 | [subord] it is often [verb] | 39 |
|
| 8 | [subord] it is often [vb pp] | 39 |
|
| 9 | [subord] it is often [adj] | 18 |
|
| 10 | [subord] it is often [adj] | 16 |
|
| 11 | [subord] it is often [adv] | 9 |
|
| 12 | [subord] it is often called | 7 |
|
| 13 | [subord] it is often call | 7 |
|
| 14 | [subord] it is often used | 6 |
|
| 15 | [subord] it is often difficult | 6 |
|
| 16 | [subord] it is often use | 6 |
|
| 17 | [subord] it is often difficult | 6 |
|
| 18 | [subord] it is often [adv] | 5 |
|
| 19 | [subord] it is often [art] | 5 |
|
| 20 | [subord] it is often the | 5 |
|
| 21 | [subord] it is often [art] | 5 |
|
| 22 | [subord] it is often the | 5 |
|
