could pretest
Verbe régulier : pretest - pretested- pretested

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could pretest
you could pretest
she could pretest
we could pretest
you could pretest
they could pretest 	I could be pretesting
you could be pretesting
she could be pretesting
we could be pretesting
you could be pretesting
they could be pretesting	I could have pretested
you could have pretested
she could have pretested
we could have pretested
you could have pretested
they could have pretested	I could have been pretesting
you could have been pretesting
she could have been pretesting
we could have been pretesting
you could have been pretesting
they could have been pretesting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't pretest
you couldn't pretest
she couldn't pretest
we couldn't pretest
you couldn't pretest
they couldn't pretest 	I couldn't be pretesting
you couldn't be pretesting
she couldn't be pretesting
we couldn't be pretesting
you couldn't be pretesting
they couldn't be pretesting	I couldn't have pretested
you couldn't have pretested
she couldn't have pretested
we couldn't have pretested
you couldn't have pretested
they couldn't have pretested	I couldn't have been pretesting
you couldn't have been pretesting
she couldn't have been pretesting
we couldn't have been pretesting
you couldn't have been pretesting
they couldn't have been pretesting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I pretest?
could you pretest?
could she pretest?
could we pretest?
could you pretest?
could they pretest? 	could I be pretesting?
could you be pretesting?
could she be pretesting?
could we be pretesting?
could you be pretesting?
could they be pretesting? 	could I have pretested?
could you have pretested?
could she have pretested?
could we have pretested?
could you have pretested?
could they have pretested? 	could I have been pretesting?
could you have been pretesting?
could she have been pretesting?
could we have been pretesting?
could you have been pretesting?
could they have been pretesting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I pretest?
couldn't you pretest?
couldn't she pretest?
couldn't we pretest?
couldn't you pretest?
couldn't they pretest? 	couldn't I be pretesting?
couldn't you be pretesting?
couldn't she be pretesting?
couldn't we be pretesting?
couldn't you be pretesting?
couldn't they be pretesting? 	couldn't I have pretested?
couldn't you have pretested?
couldn't she have pretested?
couldn't we have pretested?
couldn't you have pretested?
couldn't they have pretested? 	couldn't I have been pretesting?
couldn't you have been pretesting?
couldn't she have been pretesting?
couldn't we have been pretesting?
couldn't you have been pretesting?
couldn't they have been pretesting?