can extrapolate
Regular verb: extrapolate - extrapolated- extrapolated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can extrapolate
you can extrapolate
he can extrapolate
we can extrapolate
you can extrapolate
they can extrapolate 	I can be extrapolating
you can be extrapolating
he can be extrapolating
we can be extrapolating
you can be extrapolating
they can be extrapolating	I can have extrapolated
you can have extrapolated
he can have extrapolated
we can have extrapolated
you can have extrapolated
they can have extrapolated	I can have been extrapolating
you can have been extrapolating
he can have been extrapolating
we can have been extrapolating
you can have been extrapolating
they can have been extrapolating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot extrapolate
you cannot extrapolate
he cannot extrapolate
we cannot extrapolate
you cannot extrapolate
they cannot extrapolate 	I cannot be extrapolating
you cannot be extrapolating
he cannot be extrapolating
we cannot be extrapolating
you cannot be extrapolating
they cannot be extrapolating	I cannot have extrapolated
you cannot have extrapolated
he cannot have extrapolated
we cannot have extrapolated
you cannot have extrapolated
they cannot have extrapolated	I cannot have been extrapolating
you cannot have been extrapolating
he cannot have been extrapolating
we cannot have been extrapolating
you cannot have been extrapolating
they cannot have been extrapolating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I extrapolate?
can you extrapolate?
can he extrapolate?
can we extrapolate?
can you extrapolate?
can they extrapolate? 	can I be extrapolating?
can you be extrapolating?
can he be extrapolating?
can we be extrapolating?
can you be extrapolating?
can they be extrapolating? 	can I have extrapolated?
can you have extrapolated?
can he have extrapolated?
can we have extrapolated?
can you have extrapolated?
can they have extrapolated? 	can I have been extrapolating?
can you have been extrapolating?
can he have been extrapolating?
can we have been extrapolating?
can you have been extrapolating?
can they have been extrapolating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not extrapolate?
can you not extrapolate?
can he not extrapolate?
can we not extrapolate?
can you not extrapolate?
can they not extrapolate? 	can I not be extrapolating?
can you not be extrapolating?
can he not be extrapolating?
can we not be extrapolating?
can you not be extrapolating?
can they not be extrapolating? 	can I not have extrapolated?
can you not have extrapolated?
can he not have extrapolated?
can we not have extrapolated?
can you not have extrapolated?
can they not have extrapolated? 	can I not have been extrapolating?
can you not have been extrapolating?
can he not have been extrapolating?
can we not have been extrapolating?
can you not have been extrapolating?
can they not have been extrapolating?