could surrogate
Verbe régulier : surrogate - surrogated- surrogated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could surrogate
you could surrogate
he could surrogate
we could surrogate
you could surrogate
they could surrogate 	I could be surrogating
you could be surrogating
he could be surrogating
we could be surrogating
you could be surrogating
they could be surrogating	I could have surrogated
you could have surrogated
he could have surrogated
we could have surrogated
you could have surrogated
they could have surrogated	I could have been surrogating
you could have been surrogating
he could have been surrogating
we could have been surrogating
you could have been surrogating
they could have been surrogating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't surrogate
you couldn't surrogate
he couldn't surrogate
we couldn't surrogate
you couldn't surrogate
they couldn't surrogate 	I couldn't be surrogating
you couldn't be surrogating
he couldn't be surrogating
we couldn't be surrogating
you couldn't be surrogating
they couldn't be surrogating	I couldn't have surrogated
you couldn't have surrogated
he couldn't have surrogated
we couldn't have surrogated
you couldn't have surrogated
they couldn't have surrogated	I couldn't have been surrogating
you couldn't have been surrogating
he couldn't have been surrogating
we couldn't have been surrogating
you couldn't have been surrogating
they couldn't have been surrogating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I surrogate?
could you surrogate?
could he surrogate?
could we surrogate?
could you surrogate?
could they surrogate? 	could I be surrogating?
could you be surrogating?
could he be surrogating?
could we be surrogating?
could you be surrogating?
could they be surrogating? 	could I have surrogated?
could you have surrogated?
could he have surrogated?
could we have surrogated?
could you have surrogated?
could they have surrogated? 	could I have been surrogating?
could you have been surrogating?
could he have been surrogating?
could we have been surrogating?
could you have been surrogating?
could they have been surrogating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I surrogate?
couldn't you surrogate?
couldn't he surrogate?
couldn't we surrogate?
couldn't you surrogate?
couldn't they surrogate? 	couldn't I be surrogating?
couldn't you be surrogating?
couldn't he be surrogating?
couldn't we be surrogating?
couldn't you be surrogating?
couldn't they be surrogating? 	couldn't I have surrogated?
couldn't you have surrogated?
couldn't he have surrogated?
couldn't we have surrogated?
couldn't you have surrogated?
couldn't they have surrogated? 	couldn't I have been surrogating?
couldn't you have been surrogating?
couldn't he have been surrogating?
couldn't we have been surrogating?
couldn't you have been surrogating?
couldn't they have been surrogating?