| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] have been [prep] [adj] importance | 12 |
|
| 2 | [noun sg] have [been] [prep] [adj] importance | 12 |
|
| 3 | [noun sg] have [been] of [adj] importance | 12 |
|
| 4 | [noun sg] have [been] [prep] [adj] importance | 11 |
|
| 5 | [noun sg] has [been] [prep] [adj] importance | 7 |
|
