can spearfish
Regular verb: spearfish - spearfished- spearfished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can spearfish
you can spearfish
he can spearfish
we can spearfish
you can spearfish
they can spearfish 	I can be spearfishing
you can be spearfishing
he can be spearfishing
we can be spearfishing
you can be spearfishing
they can be spearfishing	I can have spearfished
you can have spearfished
he can have spearfished
we can have spearfished
you can have spearfished
they can have spearfished	I can have been spearfishing
you can have been spearfishing
he can have been spearfishing
we can have been spearfishing
you can have been spearfishing
they can have been spearfishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't spearfish
you can't spearfish
he can't spearfish
we can't spearfish
you can't spearfish
they can't spearfish 	I can't be spearfishing
you can't be spearfishing
he can't be spearfishing
we can't be spearfishing
you can't be spearfishing
they can't be spearfishing	I can't have spearfished
you can't have spearfished
he can't have spearfished
we can't have spearfished
you can't have spearfished
they can't have spearfished	I can't have been spearfishing
you can't have been spearfishing
he can't have been spearfishing
we can't have been spearfishing
you can't have been spearfishing
they can't have been spearfishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I spearfish?
can you spearfish?
can he spearfish?
can we spearfish?
can you spearfish?
can they spearfish? 	can I be spearfishing?
can you be spearfishing?
can he be spearfishing?
can we be spearfishing?
can you be spearfishing?
can they be spearfishing? 	can I have spearfished?
can you have spearfished?
can he have spearfished?
can we have spearfished?
can you have spearfished?
can they have spearfished? 	can I have been spearfishing?
can you have been spearfishing?
can he have been spearfishing?
can we have been spearfishing?
can you have been spearfishing?
can they have been spearfishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I spearfish?
can't you spearfish?
can't he spearfish?
can't we spearfish?
can't you spearfish?
can't they spearfish? 	can't I be spearfishing?
can't you be spearfishing?
can't he be spearfishing?
can't we be spearfishing?
can't you be spearfishing?
can't they be spearfishing? 	can't I have spearfished?
can't you have spearfished?
can't he have spearfished?
can't we have spearfished?
can't you have spearfished?
can't they have spearfished? 	can't I have been spearfishing?
can't you have been spearfishing?
can't he have been spearfishing?
can't we have been spearfishing?
can't you have been spearfishing?
can't they have been spearfishing?