I could frolic you could frolic he could frolic we could frolic you could frolic they could frolic
Forme en V-ing
I could be frolicing you could be frolicing he could be frolicing we could be frolicing you could be frolicing they could be frolicing
Perfect
I could have froliced you could have froliced he could have froliced we could have froliced you could have froliced they could have froliced
Perfect en V-ing
I could have been frolicing you could have been frolicing he could have been frolicing we could have been frolicing you could have been frolicing they could have been frolicing
Négation
Forme simple
I could not frolic you could not frolic he could not frolic we could not frolic you could not frolic they could not frolic
Forme en V-ing
I could not be frolicing you could not be frolicing he could not be frolicing we could not be frolicing you could not be frolicing they could not be frolicing
Perfect
I could not have froliced you could not have froliced he could not have froliced we could not have froliced you could not have froliced they could not have froliced
Perfect en V-ing
I could not have been frolicing you could not have been frolicing he could not have been frolicing we could not have been frolicing you could not have been frolicing they could not have been frolicing
Forme interrogative
Forme simple
could I frolic? could you frolic? could he frolic? could we frolic? could you frolic? could they frolic?
Forme en V-ing
could I be frolicing? could you be frolicing? could he be frolicing? could we be frolicing? could you be frolicing? could they be frolicing?
Perfect
could I have froliced? could you have froliced? could he have froliced? could we have froliced? could you have froliced? could they have froliced?
Perfect en V-ing
could I have been frolicing? could you have been frolicing? could he have been frolicing? could we have been frolicing? could you have been frolicing? could they have been frolicing?
Forme interro-négative
Forme simple
could I not frolic? could you not frolic? could he not frolic? could we not frolic? could you not frolic? could they not frolic?
Forme en V-ing
could I not be frolicing? could you not be frolicing? could he not be frolicing? could we not be frolicing? could you not be frolicing? could they not be frolicing?
Perfect
could I not have froliced? could you not have froliced? could he not have froliced? could we not have froliced? could you not have froliced? could they not have froliced?
Perfect en V-ing
could I not have been frolicing? could you not have been frolicing? could he not have been frolicing? could we not have been frolicing? could you not have been frolicing? could they not have been frolicing?