can account
Regular verb: account - accounted- accounted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can account
you can account
he can account
we can account
you can account
they can account 	I can be accounting
you can be accounting
he can be accounting
we can be accounting
you can be accounting
they can be accounting	I can have accounted
you can have accounted
he can have accounted
we can have accounted
you can have accounted
they can have accounted	I can have been accounting
you can have been accounting
he can have been accounting
we can have been accounting
you can have been accounting
they can have been accounting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't account
you can't account
he can't account
we can't account
you can't account
they can't account 	I can't be accounting
you can't be accounting
he can't be accounting
we can't be accounting
you can't be accounting
they can't be accounting	I can't have accounted
you can't have accounted
he can't have accounted
we can't have accounted
you can't have accounted
they can't have accounted	I can't have been accounting
you can't have been accounting
he can't have been accounting
we can't have been accounting
you can't have been accounting
they can't have been accounting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I account?
can you account?
can he account?
can we account?
can you account?
can they account? 	can I be accounting?
can you be accounting?
can he be accounting?
can we be accounting?
can you be accounting?
can they be accounting? 	can I have accounted?
can you have accounted?
can he have accounted?
can we have accounted?
can you have accounted?
can they have accounted? 	can I have been accounting?
can you have been accounting?
can he have been accounting?
can we have been accounting?
can you have been accounting?
can they have been accounting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I account?
can't you account?
can't he account?
can't we account?
can't you account?
can't they account? 	can't I be accounting?
can't you be accounting?
can't he be accounting?
can't we be accounting?
can't you be accounting?
can't they be accounting? 	can't I have accounted?
can't you have accounted?
can't he have accounted?
can't we have accounted?
can't you have accounted?
can't they have accounted? 	can't I have been accounting?
can't you have been accounting?
can't he have been accounting?
can't we have been accounting?
can't you have been accounting?
can't they have been accounting?