Please correct my easy sentence

[Zoe2008]

Amy will signed back the PO and return it to the customer at the past

 

[gdonuts]

Amy will sign the PO and return it to the customer in the post..is that what u r trying to convey?

 

[Zoe2008]

Amy will sign the PO and return it to the customer in the post..is that what u r trying to convey?

My meaning is : is this sentence grammically correct ?

 

[susiedqq]

Do you mean

Amy will sign the PO and will return it to the customer.



I have no idea what "in the past" means.

Do you mean

Amy has signed the PO and has returned it to the customer.
(this would be in the past)