could sulfonate
Verbe régulier : sulfonate - sulfonated- sulfonated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could sulfonate
you could sulfonate
she could sulfonate
we could sulfonate
you could sulfonate
they could sulfonate 	I could be sulfonating
you could be sulfonating
she could be sulfonating
we could be sulfonating
you could be sulfonating
they could be sulfonating	I could have sulfonated
you could have sulfonated
she could have sulfonated
we could have sulfonated
you could have sulfonated
they could have sulfonated	I could have been sulfonating
you could have been sulfonating
she could have been sulfonating
we could have been sulfonating
you could have been sulfonating
they could have been sulfonating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't sulfonate
you couldn't sulfonate
she couldn't sulfonate
we couldn't sulfonate
you couldn't sulfonate
they couldn't sulfonate 	I couldn't be sulfonating
you couldn't be sulfonating
she couldn't be sulfonating
we couldn't be sulfonating
you couldn't be sulfonating
they couldn't be sulfonating	I couldn't have sulfonated
you couldn't have sulfonated
she couldn't have sulfonated
we couldn't have sulfonated
you couldn't have sulfonated
they couldn't have sulfonated	I couldn't have been sulfonating
you couldn't have been sulfonating
she couldn't have been sulfonating
we couldn't have been sulfonating
you couldn't have been sulfonating
they couldn't have been sulfonating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I sulfonate?
could you sulfonate?
could she sulfonate?
could we sulfonate?
could you sulfonate?
could they sulfonate? 	could I be sulfonating?
could you be sulfonating?
could she be sulfonating?
could we be sulfonating?
could you be sulfonating?
could they be sulfonating? 	could I have sulfonated?
could you have sulfonated?
could she have sulfonated?
could we have sulfonated?
could you have sulfonated?
could they have sulfonated? 	could I have been sulfonating?
could you have been sulfonating?
could she have been sulfonating?
could we have been sulfonating?
could you have been sulfonating?
could they have been sulfonating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I sulfonate?
couldn't you sulfonate?
couldn't she sulfonate?
couldn't we sulfonate?
couldn't you sulfonate?
couldn't they sulfonate? 	couldn't I be sulfonating?
couldn't you be sulfonating?
couldn't she be sulfonating?
couldn't we be sulfonating?
couldn't you be sulfonating?
couldn't they be sulfonating? 	couldn't I have sulfonated?
couldn't you have sulfonated?
couldn't she have sulfonated?
couldn't we have sulfonated?
couldn't you have sulfonated?
couldn't they have sulfonated? 	couldn't I have been sulfonating?
couldn't you have been sulfonating?
couldn't she have been sulfonating?
couldn't we have been sulfonating?
couldn't you have been sulfonating?
couldn't they have been sulfonating?