can switchback
Regular verb: switchback - switchbacked- switchbacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can switchback
you can switchback
she can switchback
we can switchback
you can switchback
they can switchback 	I can be switchbacking
you can be switchbacking
she can be switchbacking
we can be switchbacking
you can be switchbacking
they can be switchbacking	I can have switchbacked
you can have switchbacked
she can have switchbacked
we can have switchbacked
you can have switchbacked
they can have switchbacked	I can have been switchbacking
you can have been switchbacking
she can have been switchbacking
we can have been switchbacking
you can have been switchbacking
they can have been switchbacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot switchback
you cannot switchback
she cannot switchback
we cannot switchback
you cannot switchback
they cannot switchback 	I cannot be switchbacking
you cannot be switchbacking
she cannot be switchbacking
we cannot be switchbacking
you cannot be switchbacking
they cannot be switchbacking	I cannot have switchbacked
you cannot have switchbacked
she cannot have switchbacked
we cannot have switchbacked
you cannot have switchbacked
they cannot have switchbacked	I cannot have been switchbacking
you cannot have been switchbacking
she cannot have been switchbacking
we cannot have been switchbacking
you cannot have been switchbacking
they cannot have been switchbacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I switchback?
can you switchback?
can she switchback?
can we switchback?
can you switchback?
can they switchback? 	can I be switchbacking?
can you be switchbacking?
can she be switchbacking?
can we be switchbacking?
can you be switchbacking?
can they be switchbacking? 	can I have switchbacked?
can you have switchbacked?
can she have switchbacked?
can we have switchbacked?
can you have switchbacked?
can they have switchbacked? 	can I have been switchbacking?
can you have been switchbacking?
can she have been switchbacking?
can we have been switchbacking?
can you have been switchbacking?
can they have been switchbacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not switchback?
can you not switchback?
can she not switchback?
can we not switchback?
can you not switchback?
can they not switchback? 	can I not be switchbacking?
can you not be switchbacking?
can she not be switchbacking?
can we not be switchbacking?
can you not be switchbacking?
can they not be switchbacking? 	can I not have switchbacked?
can you not have switchbacked?
can she not have switchbacked?
can we not have switchbacked?
can you not have switchbacked?
can they not have switchbacked? 	can I not have been switchbacking?
can you not have been switchbacking?
can she not have been switchbacking?
can we not have been switchbacking?
can you not have been switchbacking?
can they not have been switchbacking?