I could officiate you could officiate she could officiate we could officiate you could officiate they could officiate
Forme en V-ing
I could be officiating you could be officiating she could be officiating we could be officiating you could be officiating they could be officiating
Perfect
I could have officiated you could have officiated she could have officiated we could have officiated you could have officiated they could have officiated
Perfect en V-ing
I could have been officiating you could have been officiating she could have been officiating we could have been officiating you could have been officiating they could have been officiating
Négation
Forme simple
I couldn't officiate you couldn't officiate she couldn't officiate we couldn't officiate you couldn't officiate they couldn't officiate
Forme en V-ing
I couldn't be officiating you couldn't be officiating she couldn't be officiating we couldn't be officiating you couldn't be officiating they couldn't be officiating
Perfect
I couldn't have officiated you couldn't have officiated she couldn't have officiated we couldn't have officiated you couldn't have officiated they couldn't have officiated
Perfect en V-ing
I couldn't have been officiating you couldn't have been officiating she couldn't have been officiating we couldn't have been officiating you couldn't have been officiating they couldn't have been officiating
Forme interrogative
Forme simple
could I officiate? could you officiate? could she officiate? could we officiate? could you officiate? could they officiate?
Forme en V-ing
could I be officiating? could you be officiating? could she be officiating? could we be officiating? could you be officiating? could they be officiating?
Perfect
could I have officiated? could you have officiated? could she have officiated? could we have officiated? could you have officiated? could they have officiated?
Perfect en V-ing
could I have been officiating? could you have been officiating? could she have been officiating? could we have been officiating? could you have been officiating? could they have been officiating?
Forme interro-négative
Forme simple
couldn't I officiate? couldn't you officiate? couldn't she officiate? couldn't we officiate? couldn't you officiate? couldn't they officiate?
Forme en V-ing
couldn't I be officiating? couldn't you be officiating? couldn't she be officiating? couldn't we be officiating? couldn't you be officiating? couldn't they be officiating?
Perfect
couldn't I have officiated? couldn't you have officiated? couldn't she have officiated? couldn't we have officiated? couldn't you have officiated? couldn't they have officiated?
Perfect en V-ing
couldn't I have been officiating? couldn't you have been officiating? couldn't she have been officiating? couldn't we have been officiating? couldn't you have been officiating? couldn't they have been officiating?