can accelerate
Regular verb: accelerate - accelerated- accelerated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can accelerate
you can accelerate
he can accelerate
we can accelerate
you can accelerate
they can accelerate 	I can be accelerating
you can be accelerating
he can be accelerating
we can be accelerating
you can be accelerating
they can be accelerating	I can have accelerated
you can have accelerated
he can have accelerated
we can have accelerated
you can have accelerated
they can have accelerated	I can have been accelerating
you can have been accelerating
he can have been accelerating
we can have been accelerating
you can have been accelerating
they can have been accelerating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot accelerate
you cannot accelerate
he cannot accelerate
we cannot accelerate
you cannot accelerate
they cannot accelerate 	I cannot be accelerating
you cannot be accelerating
he cannot be accelerating
we cannot be accelerating
you cannot be accelerating
they cannot be accelerating	I cannot have accelerated
you cannot have accelerated
he cannot have accelerated
we cannot have accelerated
you cannot have accelerated
they cannot have accelerated	I cannot have been accelerating
you cannot have been accelerating
he cannot have been accelerating
we cannot have been accelerating
you cannot have been accelerating
they cannot have been accelerating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I accelerate?
can you accelerate?
can he accelerate?
can we accelerate?
can you accelerate?
can they accelerate? 	can I be accelerating?
can you be accelerating?
can he be accelerating?
can we be accelerating?
can you be accelerating?
can they be accelerating? 	can I have accelerated?
can you have accelerated?
can he have accelerated?
can we have accelerated?
can you have accelerated?
can they have accelerated? 	can I have been accelerating?
can you have been accelerating?
can he have been accelerating?
can we have been accelerating?
can you have been accelerating?
can they have been accelerating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not accelerate?
can you not accelerate?
can he not accelerate?
can we not accelerate?
can you not accelerate?
can they not accelerate? 	can I not be accelerating?
can you not be accelerating?
can he not be accelerating?
can we not be accelerating?
can you not be accelerating?
can they not be accelerating? 	can I not have accelerated?
can you not have accelerated?
can he not have accelerated?
can we not have accelerated?
can you not have accelerated?
can they not have accelerated? 	can I not have been accelerating?
can you not have been accelerating?
can he not have been accelerating?
can we not have been accelerating?
can you not have been accelerating?
can they not have been accelerating?