could bobble
Regular verb: bobble - bobbled- bobbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bobble
you could bobble
she could bobble
we could bobble
you could bobble
they could bobble 	I could be bobbling
you could be bobbling
she could be bobbling
we could be bobbling
you could be bobbling
they could be bobbling	I could have bobbled
you could have bobbled
she could have bobbled
we could have bobbled
you could have bobbled
they could have bobbled	I could have been bobbling
you could have been bobbling
she could have been bobbling
we could have been bobbling
you could have been bobbling
they could have been bobbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't bobble
you couldn't bobble
she couldn't bobble
we couldn't bobble
you couldn't bobble
they couldn't bobble 	I couldn't be bobbling
you couldn't be bobbling
she couldn't be bobbling
we couldn't be bobbling
you couldn't be bobbling
they couldn't be bobbling	I couldn't have bobbled
you couldn't have bobbled
she couldn't have bobbled
we couldn't have bobbled
you couldn't have bobbled
they couldn't have bobbled	I couldn't have been bobbling
you couldn't have been bobbling
she couldn't have been bobbling
we couldn't have been bobbling
you couldn't have been bobbling
they couldn't have been bobbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bobble?
could you bobble?
could she bobble?
could we bobble?
could you bobble?
could they bobble? 	could I be bobbling?
could you be bobbling?
could she be bobbling?
could we be bobbling?
could you be bobbling?
could they be bobbling? 	could I have bobbled?
could you have bobbled?
could she have bobbled?
could we have bobbled?
could you have bobbled?
could they have bobbled? 	could I have been bobbling?
could you have been bobbling?
could she have been bobbling?
could we have been bobbling?
could you have been bobbling?
could they have been bobbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I bobble?
couldn't you bobble?
couldn't she bobble?
couldn't we bobble?
couldn't you bobble?
couldn't they bobble? 	couldn't I be bobbling?
couldn't you be bobbling?
couldn't she be bobbling?
couldn't we be bobbling?
couldn't you be bobbling?
couldn't they be bobbling? 	couldn't I have bobbled?
couldn't you have bobbled?
couldn't she have bobbled?
couldn't we have bobbled?
couldn't you have bobbled?
couldn't they have bobbled? 	couldn't I have been bobbling?
couldn't you have been bobbling?
couldn't she have been bobbling?
couldn't we have been bobbling?
couldn't you have been bobbling?
couldn't they have been bobbling?