| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] is a key | 114 |
|
| 2 | [noun sg] is a key | 90 |
|
| 3 | [pron] is a key | 19 |
|
| 4 | [adj] is a key | 18 |
|
| 5 | [det] is a key | 17 |
|
| 6 | this is a key | 16 |
|
| 7 | this is a key | 16 |
|
| 8 | [noun pl] is a key | 14 |
|
| 9 | [pers pn] is a key | 11 |
|
| 10 | [noun prp] is a key | 10 |
|
| 11 | it is a key | 9 |
|
| 12 | it is a key | 9 |
|
| 13 | [verb] is a key | 6 |
|
| 14 | which is a key | 5 |
|
| 15 | [Wh det] is a key | 5 |
|
| 16 | which is a key | 5 |
|
| 17 | is [adv] a key | 24 |
|
| 18 | is [adv] a key | 22 |
|
| 19 | is a key [noun] | 170 |
|
| 20 | is a key [noun sg] | 168 |
|
| 21 | is a key factor | 21 |
|
| 22 | is a key factor | 21 |
|
| 23 | is a key element | 19 |
|
| 24 | is a key element | 19 |
|
| 25 | is a key feature | 11 |
|
| 26 | is a key feature | 11 |
|
| 27 | is a key part | 10 |
|
| 28 | is a key part | 10 |
|
| 29 | is a key issue | 6 |
|
| 30 | is a key aspect | 6 |
|
