I could acquiesce you could acquiesce he could acquiesce we could acquiesce you could acquiesce they could acquiesce
V-ing form
I could be acquiescing you could be acquiescing he could be acquiescing we could be acquiescing you could be acquiescing they could be acquiescing
Perfect
I could have acquiesced you could have acquiesced he could have acquiesced we could have acquiesced you could have acquiesced they could have acquiesced
V-ing perfect
I could have been acquiescing you could have been acquiescing he could have been acquiescing we could have been acquiescing you could have been acquiescing they could have been acquiescing
Negation
Simple form
I could not acquiesce you could not acquiesce he could not acquiesce we could not acquiesce you could not acquiesce they could not acquiesce
V-ing form
I could not be acquiescing you could not be acquiescing he could not be acquiescing we could not be acquiescing you could not be acquiescing they could not be acquiescing
Perfect
I could not have acquiesced you could not have acquiesced he could not have acquiesced we could not have acquiesced you could not have acquiesced they could not have acquiesced
V-ing perfect
I could not have been acquiescing you could not have been acquiescing he could not have been acquiescing we could not have been acquiescing you could not have been acquiescing they could not have been acquiescing
Interrogative form
Simple form
could I acquiesce? could you acquiesce? could he acquiesce? could we acquiesce? could you acquiesce? could they acquiesce?
V-ing form
could I be acquiescing? could you be acquiescing? could he be acquiescing? could we be acquiescing? could you be acquiescing? could they be acquiescing?
Perfect
could I have acquiesced? could you have acquiesced? could he have acquiesced? could we have acquiesced? could you have acquiesced? could they have acquiesced?
V-ing perfect
could I have been acquiescing? could you have been acquiescing? could he have been acquiescing? could we have been acquiescing? could you have been acquiescing? could they have been acquiescing?
Interro-negative form
Simple form
could I not acquiesce? could you not acquiesce? could he not acquiesce? could we not acquiesce? could you not acquiesce? could they not acquiesce?
V-ing form
could I not be acquiescing? could you not be acquiescing? could he not be acquiescing? could we not be acquiescing? could you not be acquiescing? could they not be acquiescing?
Perfect
could I not have acquiesced? could you not have acquiesced? could he not have acquiesced? could we not have acquiesced? could you not have acquiesced? could they not have acquiesced?
V-ing perfect
could I not have been acquiescing? could you not have been acquiescing? could he not have been acquiescing? could we not have been acquiescing? could you not have been acquiescing? could they not have been acquiescing?