No | Pattern | Freq | Relations |
---|---|---|---|
1 | which have been [v-ing] on | 23 |
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2 | which have been going on | 20 |
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3 | which have been go on | 20 |
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4 | which had been [verb] on | 14 |
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5 | which has been [verb] on | 13 |
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6 | which have been [vb pp] on | 11 |
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7 | which have been [verb] on | 7 |
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