could guest-star
Verbe régulier : guest-star - guest-stared- guest-stared

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could guest-star
you could guest-star
she could guest-star
we could guest-star
you could guest-star
they could guest-star 	I could be guest-staring
you could be guest-staring
she could be guest-staring
we could be guest-staring
you could be guest-staring
they could be guest-staring	I could have guest-stared
you could have guest-stared
she could have guest-stared
we could have guest-stared
you could have guest-stared
they could have guest-stared	I could have been guest-staring
you could have been guest-staring
she could have been guest-staring
we could have been guest-staring
you could have been guest-staring
they could have been guest-staring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't guest-star
you couldn't guest-star
she couldn't guest-star
we couldn't guest-star
you couldn't guest-star
they couldn't guest-star 	I couldn't be guest-staring
you couldn't be guest-staring
she couldn't be guest-staring
we couldn't be guest-staring
you couldn't be guest-staring
they couldn't be guest-staring	I couldn't have guest-stared
you couldn't have guest-stared
she couldn't have guest-stared
we couldn't have guest-stared
you couldn't have guest-stared
they couldn't have guest-stared	I couldn't have been guest-staring
you couldn't have been guest-staring
she couldn't have been guest-staring
we couldn't have been guest-staring
you couldn't have been guest-staring
they couldn't have been guest-staring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I guest-star?
could you guest-star?
could she guest-star?
could we guest-star?
could you guest-star?
could they guest-star? 	could I be guest-staring?
could you be guest-staring?
could she be guest-staring?
could we be guest-staring?
could you be guest-staring?
could they be guest-staring? 	could I have guest-stared?
could you have guest-stared?
could she have guest-stared?
could we have guest-stared?
could you have guest-stared?
could they have guest-stared? 	could I have been guest-staring?
could you have been guest-staring?
could she have been guest-staring?
could we have been guest-staring?
could you have been guest-staring?
could they have been guest-staring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I guest-star?
couldn't you guest-star?
couldn't she guest-star?
couldn't we guest-star?
couldn't you guest-star?
couldn't they guest-star? 	couldn't I be guest-staring?
couldn't you be guest-staring?
couldn't she be guest-staring?
couldn't we be guest-staring?
couldn't you be guest-staring?
couldn't they be guest-staring? 	couldn't I have guest-stared?
couldn't you have guest-stared?
couldn't she have guest-stared?
couldn't we have guest-stared?
couldn't you have guest-stared?
couldn't they have guest-stared? 	couldn't I have been guest-staring?
couldn't you have been guest-staring?
couldn't she have been guest-staring?
couldn't we have been guest-staring?
couldn't you have been guest-staring?
couldn't they have been guest-staring?