It is common for residential rental real estate to show a loss on paper, at tax filing time for every year the property is in service. So line 25/26 will show a loss most often.
If conditions are met (and they are for most folks) up to a maximum of $25K of those excess losses can be deducted from other ordinary income. Otherwise, if conditions aren't met and the excess loss isn't allowed, you'll see it carried over to the next year on form 8582.