could babble
Regular verb: babble - babbled- babbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could babble
you could babble
she could babble
we could babble
you could babble
they could babble 	I could be babbling
you could be babbling
she could be babbling
we could be babbling
you could be babbling
they could be babbling	I could have babbled
you could have babbled
she could have babbled
we could have babbled
you could have babbled
they could have babbled	I could have been babbling
you could have been babbling
she could have been babbling
we could have been babbling
you could have been babbling
they could have been babbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't babble
you couldn't babble
she couldn't babble
we couldn't babble
you couldn't babble
they couldn't babble 	I couldn't be babbling
you couldn't be babbling
she couldn't be babbling
we couldn't be babbling
you couldn't be babbling
they couldn't be babbling	I couldn't have babbled
you couldn't have babbled
she couldn't have babbled
we couldn't have babbled
you couldn't have babbled
they couldn't have babbled	I couldn't have been babbling
you couldn't have been babbling
she couldn't have been babbling
we couldn't have been babbling
you couldn't have been babbling
they couldn't have been babbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I babble?
could you babble?
could she babble?
could we babble?
could you babble?
could they babble? 	could I be babbling?
could you be babbling?
could she be babbling?
could we be babbling?
could you be babbling?
could they be babbling? 	could I have babbled?
could you have babbled?
could she have babbled?
could we have babbled?
could you have babbled?
could they have babbled? 	could I have been babbling?
could you have been babbling?
could she have been babbling?
could we have been babbling?
could you have been babbling?
could they have been babbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I babble?
couldn't you babble?
couldn't she babble?
couldn't we babble?
couldn't you babble?
couldn't they babble? 	couldn't I be babbling?
couldn't you be babbling?
couldn't she be babbling?
couldn't we be babbling?
couldn't you be babbling?
couldn't they be babbling? 	couldn't I have babbled?
couldn't you have babbled?
couldn't she have babbled?
couldn't we have babbled?
couldn't you have babbled?
couldn't they have babbled? 	couldn't I have been babbling?
couldn't you have been babbling?
couldn't she have been babbling?
couldn't we have been babbling?
couldn't you have been babbling?
couldn't they have been babbling?