can retread
Regular verb: retread - retreaded- retreaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can retread
you can retread
he can retread
we can retread
you can retread
they can retread 	I can be retreading
you can be retreading
he can be retreading
we can be retreading
you can be retreading
they can be retreading	I can have retreaded
you can have retreaded
he can have retreaded
we can have retreaded
you can have retreaded
they can have retreaded	I can have been retreading
you can have been retreading
he can have been retreading
we can have been retreading
you can have been retreading
they can have been retreading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot retread
you cannot retread
he cannot retread
we cannot retread
you cannot retread
they cannot retread 	I cannot be retreading
you cannot be retreading
he cannot be retreading
we cannot be retreading
you cannot be retreading
they cannot be retreading	I cannot have retreaded
you cannot have retreaded
he cannot have retreaded
we cannot have retreaded
you cannot have retreaded
they cannot have retreaded	I cannot have been retreading
you cannot have been retreading
he cannot have been retreading
we cannot have been retreading
you cannot have been retreading
they cannot have been retreading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I retread?
can you retread?
can he retread?
can we retread?
can you retread?
can they retread? 	can I be retreading?
can you be retreading?
can he be retreading?
can we be retreading?
can you be retreading?
can they be retreading? 	can I have retreaded?
can you have retreaded?
can he have retreaded?
can we have retreaded?
can you have retreaded?
can they have retreaded? 	can I have been retreading?
can you have been retreading?
can he have been retreading?
can we have been retreading?
can you have been retreading?
can they have been retreading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not retread?
can you not retread?
can he not retread?
can we not retread?
can you not retread?
can they not retread? 	can I not be retreading?
can you not be retreading?
can he not be retreading?
can we not be retreading?
can you not be retreading?
can they not be retreading? 	can I not have retreaded?
can you not have retreaded?
can he not have retreaded?
can we not have retreaded?
can you not have retreaded?
can they not have retreaded? 	can I not have been retreading?
can you not have been retreading?
can he not have been retreading?
can we not have been retreading?
can you not have been retreading?
can they not have been retreading?