could skim
Verbe régulier : skim - skimmed- skimmed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could skim
you could skim
she could skim
we could skim
you could skim
they could skim 	I could be skimming
you could be skimming
she could be skimming
we could be skimming
you could be skimming
they could be skimming	I could have skimmed
you could have skimmed
she could have skimmed
we could have skimmed
you could have skimmed
they could have skimmed	I could have been skimming
you could have been skimming
she could have been skimming
we could have been skimming
you could have been skimming
they could have been skimming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not skim
you could not skim
she could not skim
we could not skim
you could not skim
they could not skim 	I could not be skimming
you could not be skimming
she could not be skimming
we could not be skimming
you could not be skimming
they could not be skimming	I could not have skimmed
you could not have skimmed
she could not have skimmed
we could not have skimmed
you could not have skimmed
they could not have skimmed	I could not have been skimming
you could not have been skimming
she could not have been skimming
we could not have been skimming
you could not have been skimming
they could not have been skimming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I skim?
could you skim?
could she skim?
could we skim?
could you skim?
could they skim? 	could I be skimming?
could you be skimming?
could she be skimming?
could we be skimming?
could you be skimming?
could they be skimming? 	could I have skimmed?
could you have skimmed?
could she have skimmed?
could we have skimmed?
could you have skimmed?
could they have skimmed? 	could I have been skimming?
could you have been skimming?
could she have been skimming?
could we have been skimming?
could you have been skimming?
could they have been skimming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not skim?
could you not skim?
could she not skim?
could we not skim?
could you not skim?
could they not skim? 	could I not be skimming?
could you not be skimming?
could she not be skimming?
could we not be skimming?
could you not be skimming?
could they not be skimming? 	could I not have skimmed?
could you not have skimmed?
could she not have skimmed?
could we not have skimmed?
could you not have skimmed?
could they not have skimmed? 	could I not have been skimming?
could you not have been skimming?
could she not have been skimming?
could we not have been skimming?
could you not have been skimming?
could they not have been skimming?