could consolidate
Regular verb: consolidate - consolidated- consolidated

Affirmation 	
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I could consolidate
you could consolidate
she could consolidate
we could consolidate
you could consolidate
they could consolidate 	I could be consolidating
you could be consolidating
she could be consolidating
we could be consolidating
you could be consolidating
they could be consolidating	I could have consolidated
you could have consolidated
she could have consolidated
we could have consolidated
you could have consolidated
they could have consolidated	I could have been consolidating
you could have been consolidating
she could have been consolidating
we could have been consolidating
you could have been consolidating
they could have been consolidating	

Negation 	
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I couldn't consolidate
you couldn't consolidate
she couldn't consolidate
we couldn't consolidate
you couldn't consolidate
they couldn't consolidate 	I couldn't be consolidating
you couldn't be consolidating
she couldn't be consolidating
we couldn't be consolidating
you couldn't be consolidating
they couldn't be consolidating	I couldn't have consolidated
you couldn't have consolidated
she couldn't have consolidated
we couldn't have consolidated
you couldn't have consolidated
they couldn't have consolidated	I couldn't have been consolidating
you couldn't have been consolidating
she couldn't have been consolidating
we couldn't have been consolidating
you couldn't have been consolidating
they couldn't have been consolidating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I consolidate?
could you consolidate?
could she consolidate?
could we consolidate?
could you consolidate?
could they consolidate? 	could I be consolidating?
could you be consolidating?
could she be consolidating?
could we be consolidating?
could you be consolidating?
could they be consolidating? 	could I have consolidated?
could you have consolidated?
could she have consolidated?
could we have consolidated?
could you have consolidated?
could they have consolidated? 	could I have been consolidating?
could you have been consolidating?
could she have been consolidating?
could we have been consolidating?
could you have been consolidating?
could they have been consolidating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I consolidate?
couldn't you consolidate?
couldn't she consolidate?
couldn't we consolidate?
couldn't you consolidate?
couldn't they consolidate? 	couldn't I be consolidating?
couldn't you be consolidating?
couldn't she be consolidating?
couldn't we be consolidating?
couldn't you be consolidating?
couldn't they be consolidating? 	couldn't I have consolidated?
couldn't you have consolidated?
couldn't she have consolidated?
couldn't we have consolidated?
couldn't you have consolidated?
couldn't they have consolidated? 	couldn't I have been consolidating?
couldn't you have been consolidating?
couldn't she have been consolidating?
couldn't we have been consolidating?
couldn't you have been consolidating?
couldn't they have been consolidating?