there are sales
The Spanish phrase 'haber rebajas' translates to 'there are sales' in English. It is often used in the context of shopping, particularly in retail, to indicate that items' prices have been reduced for a limited time. Both 'haber rebajas' in Spanish and 'there are sales' in English are likely to be seen on signs or advertisements intended to attract customers. In Spain specifically, there are two official sales seasons recognized by the government: once after Christmas and once during the summer, though sales may certainly occur at other times as well.
Could there be discounts on these shoes?
This phrase is asking if it's possible for there to be discounts on a specific item, in this case, shoes. The speaker is unsure, hence why they are asking, which is signified by '¿Podría...?' starting the sentence.
Despite the crisis, there can still be discounts.
This sentence is expressing the idea that even while in a difficult circumstance, the occurrence of discounts is still possible. It signifies optimism, and it uses 'todavía pueden' to indicate the continuity or possibility of something.
If you buy in bulk, there should be discounts.
This phrase is establishing a condition for the discounts to occur, which is buying in bulk. The conditional aspect is represented by 'Si...,' which equates to 'If....' in English, and 'debe' signifies an expectation of a discount.