could acquiesce
Regular verb: acquiesce - acquiesced- acquiesced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could acquiesce
you could acquiesce
she could acquiesce
we could acquiesce
you could acquiesce
they could acquiesce 	I could be acquiescing
you could be acquiescing
she could be acquiescing
we could be acquiescing
you could be acquiescing
they could be acquiescing	I could have acquiesced
you could have acquiesced
she could have acquiesced
we could have acquiesced
you could have acquiesced
they could have acquiesced	I could have been acquiescing
you could have been acquiescing
she could have been acquiescing
we could have been acquiescing
you could have been acquiescing
they could have been acquiescing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't acquiesce
you couldn't acquiesce
she couldn't acquiesce
we couldn't acquiesce
you couldn't acquiesce
they couldn't acquiesce 	I couldn't be acquiescing
you couldn't be acquiescing
she couldn't be acquiescing
we couldn't be acquiescing
you couldn't be acquiescing
they couldn't be acquiescing	I couldn't have acquiesced
you couldn't have acquiesced
she couldn't have acquiesced
we couldn't have acquiesced
you couldn't have acquiesced
they couldn't have acquiesced	I couldn't have been acquiescing
you couldn't have been acquiescing
she couldn't have been acquiescing
we couldn't have been acquiescing
you couldn't have been acquiescing
they couldn't have been acquiescing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I acquiesce?
could you acquiesce?
could she acquiesce?
could we acquiesce?
could you acquiesce?
could they acquiesce? 	could I be acquiescing?
could you be acquiescing?
could she be acquiescing?
could we be acquiescing?
could you be acquiescing?
could they be acquiescing? 	could I have acquiesced?
could you have acquiesced?
could she have acquiesced?
could we have acquiesced?
could you have acquiesced?
could they have acquiesced? 	could I have been acquiescing?
could you have been acquiescing?
could she have been acquiescing?
could we have been acquiescing?
could you have been acquiescing?
could they have been acquiescing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I acquiesce?
couldn't you acquiesce?
couldn't she acquiesce?
couldn't we acquiesce?
couldn't you acquiesce?
couldn't they acquiesce? 	couldn't I be acquiescing?
couldn't you be acquiescing?
couldn't she be acquiescing?
couldn't we be acquiescing?
couldn't you be acquiescing?
couldn't they be acquiescing? 	couldn't I have acquiesced?
couldn't you have acquiesced?
couldn't she have acquiesced?
couldn't we have acquiesced?
couldn't you have acquiesced?
couldn't they have acquiesced? 	couldn't I have been acquiescing?
couldn't you have been acquiescing?
couldn't she have been acquiescing?
couldn't we have been acquiescing?
couldn't you have been acquiescing?
couldn't they have been acquiescing?