can dump
Regular verb: dump - dumped- dumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can dump
you can dump
he can dump
we can dump
you can dump
they can dump 	I can be dumping
you can be dumping
he can be dumping
we can be dumping
you can be dumping
they can be dumping	I can have dumped
you can have dumped
he can have dumped
we can have dumped
you can have dumped
they can have dumped	I can have been dumping
you can have been dumping
he can have been dumping
we can have been dumping
you can have been dumping
they can have been dumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot dump
you cannot dump
he cannot dump
we cannot dump
you cannot dump
they cannot dump 	I cannot be dumping
you cannot be dumping
he cannot be dumping
we cannot be dumping
you cannot be dumping
they cannot be dumping	I cannot have dumped
you cannot have dumped
he cannot have dumped
we cannot have dumped
you cannot have dumped
they cannot have dumped	I cannot have been dumping
you cannot have been dumping
he cannot have been dumping
we cannot have been dumping
you cannot have been dumping
they cannot have been dumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I dump?
can you dump?
can he dump?
can we dump?
can you dump?
can they dump? 	can I be dumping?
can you be dumping?
can he be dumping?
can we be dumping?
can you be dumping?
can they be dumping? 	can I have dumped?
can you have dumped?
can he have dumped?
can we have dumped?
can you have dumped?
can they have dumped? 	can I have been dumping?
can you have been dumping?
can he have been dumping?
can we have been dumping?
can you have been dumping?
can they have been dumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not dump?
can you not dump?
can he not dump?
can we not dump?
can you not dump?
can they not dump? 	can I not be dumping?
can you not be dumping?
can he not be dumping?
can we not be dumping?
can you not be dumping?
can they not be dumping? 	can I not have dumped?
can you not have dumped?
can he not have dumped?
can we not have dumped?
can you not have dumped?
can they not have dumped? 	can I not have been dumping?
can you not have been dumping?
can he not have been dumping?
can we not have been dumping?
can you not have been dumping?
can they not have been dumping?