| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not a [noun] for | 384 |
|
| 2 | [adv] a substitute for | 27 |
|
| 3 | [not/n't] a substitute for | 17 |
|
| 4 | not [art] substitute for | 17 |
|
| 5 | not a substitute [prep] | 17 |
|
| 6 | not a substitute for | 17 |
|
| 7 | not a substitute [prep] | 17 |
|
| 8 | not a substitute for | 17 |
|
