| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have been [v-ing] a [noun] | 25 |
|
| 2 | [noun pl] have be [v-ing] a [noun sg] | 23 |
|
| 3 | [noun pl] have be [v-ing] a [noun] | 15 |
|
| 4 | [noun pl] had be [v-ing] a [noun] | 9 |
|
