No | Pattern | Freq | Relations |
---|---|---|---|
1 | [verb] been concerned for [adj] time | 5 |
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2 | [verb] been concerned for some time | 5 |
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3 | have been concerned for [adj] time | 5 |
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4 | [verb] been concerned for [det] time | 5 |
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5 | [verb] been concerned for some time | 5 |
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6 | [verb] been concerned for [adj] time | 5 |
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