could thermostat
Verbe régulier : thermostat - thermostated- thermostated

Affirmation 	
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I could thermostat
you could thermostat
he could thermostat
we could thermostat
you could thermostat
they could thermostat 	I could be thermostating
you could be thermostating
he could be thermostating
we could be thermostating
you could be thermostating
they could be thermostating	I could have thermostated
you could have thermostated
he could have thermostated
we could have thermostated
you could have thermostated
they could have thermostated	I could have been thermostating
you could have been thermostating
he could have been thermostating
we could have been thermostating
you could have been thermostating
they could have been thermostating	

Négation 	
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I couldn't thermostat
you couldn't thermostat
he couldn't thermostat
we couldn't thermostat
you couldn't thermostat
they couldn't thermostat 	I couldn't be thermostating
you couldn't be thermostating
he couldn't be thermostating
we couldn't be thermostating
you couldn't be thermostating
they couldn't be thermostating	I couldn't have thermostated
you couldn't have thermostated
he couldn't have thermostated
we couldn't have thermostated
you couldn't have thermostated
they couldn't have thermostated	I couldn't have been thermostating
you couldn't have been thermostating
he couldn't have been thermostating
we couldn't have been thermostating
you couldn't have been thermostating
they couldn't have been thermostating	

Forme interrogative 	
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could I thermostat?
could you thermostat?
could he thermostat?
could we thermostat?
could you thermostat?
could they thermostat? 	could I be thermostating?
could you be thermostating?
could he be thermostating?
could we be thermostating?
could you be thermostating?
could they be thermostating? 	could I have thermostated?
could you have thermostated?
could he have thermostated?
could we have thermostated?
could you have thermostated?
could they have thermostated? 	could I have been thermostating?
could you have been thermostating?
could he have been thermostating?
could we have been thermostating?
could you have been thermostating?
could they have been thermostating? 	

Forme interro-négative 	
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couldn't I thermostat?
couldn't you thermostat?
couldn't he thermostat?
couldn't we thermostat?
couldn't you thermostat?
couldn't they thermostat? 	couldn't I be thermostating?
couldn't you be thermostating?
couldn't he be thermostating?
couldn't we be thermostating?
couldn't you be thermostating?
couldn't they be thermostating? 	couldn't I have thermostated?
couldn't you have thermostated?
couldn't he have thermostated?
couldn't we have thermostated?
couldn't you have thermostated?
couldn't they have thermostated? 	couldn't I have been thermostating?
couldn't you have been thermostating?
couldn't he have been thermostating?
couldn't we have been thermostating?
couldn't you have been thermostating?
couldn't they have been thermostating?