could overstaff
Verbe régulier : overstaff - overstaffed- overstaffed

Affirmation 	
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I could overstaff
you could overstaff
he could overstaff
we could overstaff
you could overstaff
they could overstaff 	I could be overstaffing
you could be overstaffing
he could be overstaffing
we could be overstaffing
you could be overstaffing
they could be overstaffing	I could have overstaffed
you could have overstaffed
he could have overstaffed
we could have overstaffed
you could have overstaffed
they could have overstaffed	I could have been overstaffing
you could have been overstaffing
he could have been overstaffing
we could have been overstaffing
you could have been overstaffing
they could have been overstaffing	

Négation 	
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I couldn't overstaff
you couldn't overstaff
he couldn't overstaff
we couldn't overstaff
you couldn't overstaff
they couldn't overstaff 	I couldn't be overstaffing
you couldn't be overstaffing
he couldn't be overstaffing
we couldn't be overstaffing
you couldn't be overstaffing
they couldn't be overstaffing	I couldn't have overstaffed
you couldn't have overstaffed
he couldn't have overstaffed
we couldn't have overstaffed
you couldn't have overstaffed
they couldn't have overstaffed	I couldn't have been overstaffing
you couldn't have been overstaffing
he couldn't have been overstaffing
we couldn't have been overstaffing
you couldn't have been overstaffing
they couldn't have been overstaffing	

Forme interrogative 	
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could I overstaff?
could you overstaff?
could he overstaff?
could we overstaff?
could you overstaff?
could they overstaff? 	could I be overstaffing?
could you be overstaffing?
could he be overstaffing?
could we be overstaffing?
could you be overstaffing?
could they be overstaffing? 	could I have overstaffed?
could you have overstaffed?
could he have overstaffed?
could we have overstaffed?
could you have overstaffed?
could they have overstaffed? 	could I have been overstaffing?
could you have been overstaffing?
could he have been overstaffing?
could we have been overstaffing?
could you have been overstaffing?
could they have been overstaffing? 	

Forme interro-négative 	
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couldn't I overstaff?
couldn't you overstaff?
couldn't he overstaff?
couldn't we overstaff?
couldn't you overstaff?
couldn't they overstaff? 	couldn't I be overstaffing?
couldn't you be overstaffing?
couldn't he be overstaffing?
couldn't we be overstaffing?
couldn't you be overstaffing?
couldn't they be overstaffing? 	couldn't I have overstaffed?
couldn't you have overstaffed?
couldn't he have overstaffed?
couldn't we have overstaffed?
couldn't you have overstaffed?
couldn't they have overstaffed? 	couldn't I have been overstaffing?
couldn't you have been overstaffing?
couldn't he have been overstaffing?
couldn't we have been overstaffing?
couldn't you have been overstaffing?
couldn't they have been overstaffing?