can jumble
Regular verb: jumble - jumbled- jumbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can jumble
you can jumble
she can jumble
we can jumble
you can jumble
they can jumble 	I can be jumbling
you can be jumbling
she can be jumbling
we can be jumbling
you can be jumbling
they can be jumbling	I can have jumbled
you can have jumbled
she can have jumbled
we can have jumbled
you can have jumbled
they can have jumbled	I can have been jumbling
you can have been jumbling
she can have been jumbling
we can have been jumbling
you can have been jumbling
they can have been jumbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't jumble
you can't jumble
she can't jumble
we can't jumble
you can't jumble
they can't jumble 	I can't be jumbling
you can't be jumbling
she can't be jumbling
we can't be jumbling
you can't be jumbling
they can't be jumbling	I can't have jumbled
you can't have jumbled
she can't have jumbled
we can't have jumbled
you can't have jumbled
they can't have jumbled	I can't have been jumbling
you can't have been jumbling
she can't have been jumbling
we can't have been jumbling
you can't have been jumbling
they can't have been jumbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I jumble?
can you jumble?
can she jumble?
can we jumble?
can you jumble?
can they jumble? 	can I be jumbling?
can you be jumbling?
can she be jumbling?
can we be jumbling?
can you be jumbling?
can they be jumbling? 	can I have jumbled?
can you have jumbled?
can she have jumbled?
can we have jumbled?
can you have jumbled?
can they have jumbled? 	can I have been jumbling?
can you have been jumbling?
can she have been jumbling?
can we have been jumbling?
can you have been jumbling?
can they have been jumbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I jumble?
can't you jumble?
can't she jumble?
can't we jumble?
can't you jumble?
can't they jumble? 	can't I be jumbling?
can't you be jumbling?
can't she be jumbling?
can't we be jumbling?
can't you be jumbling?
can't they be jumbling? 	can't I have jumbled?
can't you have jumbled?
can't she have jumbled?
can't we have jumbled?
can't you have jumbled?
can't they have jumbled? 	can't I have been jumbling?
can't you have been jumbling?
can't she have been jumbling?
can't we have been jumbling?
can't you have been jumbling?
can't they have been jumbling?