could exude
Regular verb: exude - exuded- exuded

Affirmation 	
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I could exude
you could exude
she could exude
we could exude
you could exude
they could exude 	I could be exuding
you could be exuding
she could be exuding
we could be exuding
you could be exuding
they could be exuding	I could have exuded
you could have exuded
she could have exuded
we could have exuded
you could have exuded
they could have exuded	I could have been exuding
you could have been exuding
she could have been exuding
we could have been exuding
you could have been exuding
they could have been exuding	

Negation 	
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I couldn't exude
you couldn't exude
she couldn't exude
we couldn't exude
you couldn't exude
they couldn't exude 	I couldn't be exuding
you couldn't be exuding
she couldn't be exuding
we couldn't be exuding
you couldn't be exuding
they couldn't be exuding	I couldn't have exuded
you couldn't have exuded
she couldn't have exuded
we couldn't have exuded
you couldn't have exuded
they couldn't have exuded	I couldn't have been exuding
you couldn't have been exuding
she couldn't have been exuding
we couldn't have been exuding
you couldn't have been exuding
they couldn't have been exuding	

Interrogative form 	
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could I exude?
could you exude?
could she exude?
could we exude?
could you exude?
could they exude? 	could I be exuding?
could you be exuding?
could she be exuding?
could we be exuding?
could you be exuding?
could they be exuding? 	could I have exuded?
could you have exuded?
could she have exuded?
could we have exuded?
could you have exuded?
could they have exuded? 	could I have been exuding?
could you have been exuding?
could she have been exuding?
could we have been exuding?
could you have been exuding?
could they have been exuding? 	

Interro-negative form 	
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couldn't I exude?
couldn't you exude?
couldn't she exude?
couldn't we exude?
couldn't you exude?
couldn't they exude? 	couldn't I be exuding?
couldn't you be exuding?
couldn't she be exuding?
couldn't we be exuding?
couldn't you be exuding?
couldn't they be exuding? 	couldn't I have exuded?
couldn't you have exuded?
couldn't she have exuded?
couldn't we have exuded?
couldn't you have exuded?
couldn't they have exuded? 	couldn't I have been exuding?
couldn't you have been exuding?
couldn't she have been exuding?
couldn't we have been exuding?
couldn't you have been exuding?
couldn't they have been exuding?