could underfurnish
Verbe régulier : underfurnish - underfurnished- underfurnished

Affirmation 	
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I could underfurnish
you could underfurnish
she could underfurnish
we could underfurnish
you could underfurnish
they could underfurnish 	I could be underfurnishing
you could be underfurnishing
she could be underfurnishing
we could be underfurnishing
you could be underfurnishing
they could be underfurnishing	I could have underfurnished
you could have underfurnished
she could have underfurnished
we could have underfurnished
you could have underfurnished
they could have underfurnished	I could have been underfurnishing
you could have been underfurnishing
she could have been underfurnishing
we could have been underfurnishing
you could have been underfurnishing
they could have been underfurnishing	

Négation 	
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I couldn't underfurnish
you couldn't underfurnish
she couldn't underfurnish
we couldn't underfurnish
you couldn't underfurnish
they couldn't underfurnish 	I couldn't be underfurnishing
you couldn't be underfurnishing
she couldn't be underfurnishing
we couldn't be underfurnishing
you couldn't be underfurnishing
they couldn't be underfurnishing	I couldn't have underfurnished
you couldn't have underfurnished
she couldn't have underfurnished
we couldn't have underfurnished
you couldn't have underfurnished
they couldn't have underfurnished	I couldn't have been underfurnishing
you couldn't have been underfurnishing
she couldn't have been underfurnishing
we couldn't have been underfurnishing
you couldn't have been underfurnishing
they couldn't have been underfurnishing	

Forme interrogative 	
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could I underfurnish?
could you underfurnish?
could she underfurnish?
could we underfurnish?
could you underfurnish?
could they underfurnish? 	could I be underfurnishing?
could you be underfurnishing?
could she be underfurnishing?
could we be underfurnishing?
could you be underfurnishing?
could they be underfurnishing? 	could I have underfurnished?
could you have underfurnished?
could she have underfurnished?
could we have underfurnished?
could you have underfurnished?
could they have underfurnished? 	could I have been underfurnishing?
could you have been underfurnishing?
could she have been underfurnishing?
could we have been underfurnishing?
could you have been underfurnishing?
could they have been underfurnishing? 	

Forme interro-négative 	
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couldn't I underfurnish?
couldn't you underfurnish?
couldn't she underfurnish?
couldn't we underfurnish?
couldn't you underfurnish?
couldn't they underfurnish? 	couldn't I be underfurnishing?
couldn't you be underfurnishing?
couldn't she be underfurnishing?
couldn't we be underfurnishing?
couldn't you be underfurnishing?
couldn't they be underfurnishing? 	couldn't I have underfurnished?
couldn't you have underfurnished?
couldn't she have underfurnished?
couldn't we have underfurnished?
couldn't you have underfurnished?
couldn't they have underfurnished? 	couldn't I have been underfurnishing?
couldn't you have been underfurnishing?
couldn't she have been underfurnishing?
couldn't we have been underfurnishing?
couldn't you have been underfurnishing?
couldn't they have been underfurnishing?