could fluster
Regular verb: fluster - flustered- flustered

Affirmation 	
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I could fluster
you could fluster
she could fluster
we could fluster
you could fluster
they could fluster 	I could be flustering
you could be flustering
she could be flustering
we could be flustering
you could be flustering
they could be flustering	I could have flustered
you could have flustered
she could have flustered
we could have flustered
you could have flustered
they could have flustered	I could have been flustering
you could have been flustering
she could have been flustering
we could have been flustering
you could have been flustering
they could have been flustering	

Negation 	
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I couldn't fluster
you couldn't fluster
she couldn't fluster
we couldn't fluster
you couldn't fluster
they couldn't fluster 	I couldn't be flustering
you couldn't be flustering
she couldn't be flustering
we couldn't be flustering
you couldn't be flustering
they couldn't be flustering	I couldn't have flustered
you couldn't have flustered
she couldn't have flustered
we couldn't have flustered
you couldn't have flustered
they couldn't have flustered	I couldn't have been flustering
you couldn't have been flustering
she couldn't have been flustering
we couldn't have been flustering
you couldn't have been flustering
they couldn't have been flustering	

Interrogative form 	
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could I fluster?
could you fluster?
could she fluster?
could we fluster?
could you fluster?
could they fluster? 	could I be flustering?
could you be flustering?
could she be flustering?
could we be flustering?
could you be flustering?
could they be flustering? 	could I have flustered?
could you have flustered?
could she have flustered?
could we have flustered?
could you have flustered?
could they have flustered? 	could I have been flustering?
could you have been flustering?
could she have been flustering?
could we have been flustering?
could you have been flustering?
could they have been flustering? 	

Interro-negative form 	
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couldn't I fluster?
couldn't you fluster?
couldn't she fluster?
couldn't we fluster?
couldn't you fluster?
couldn't they fluster? 	couldn't I be flustering?
couldn't you be flustering?
couldn't she be flustering?
couldn't we be flustering?
couldn't you be flustering?
couldn't they be flustering? 	couldn't I have flustered?
couldn't you have flustered?
couldn't she have flustered?
couldn't we have flustered?
couldn't you have flustered?
couldn't they have flustered? 	couldn't I have been flustering?
couldn't you have been flustering?
couldn't she have been flustering?
couldn't we have been flustering?
couldn't you have been flustering?
couldn't they have been flustering?