You did not answer the question completely though. So for the phrase "estoy bebiendolos" where is the accent placed? Don't you have to add an accent when the direct object is attached at the end of a progressive tense

My apologies for the incomplete response earlier. You are correct, when the direct object pronoun is attached at the end of a progressive tense verb like "estoy bebiendolos," an accent is often added to maintain the original stress of the word.

In the case of "estoy bebiéndolos," the accent is placed on the second to last syllable, which is the "é" after the "b" and before the "n." This helps to indicate that the natural stress of the word "bebiendo" is not altered despite the addition of the direct object pronoun "los."

To explain how to determine the correct placement of the accent in cases like this, it's important to understand the basic rules of Spanish accentuation. In Spanish, the stress primarily falls on the second-to-last syllable (penultimate) if the word ends in a vowel, the consonants "n" or "s," or a vowel+n or vowel+s combination. For example, "bebiendo" follows this pattern.

In contrast, if a word ends in any consonant other than "n" or "s," the stress falls on the last syllable (final). However, when we add a suffix such as a pronoun, like in "bebiéndolos," we need to maintain the original stress of the word. To indicate this, an accent is added on the stressed syllable, the second-to-last syllable in this case.

Remember, Spanish accentuation rules may vary, so it's always a good idea to consult a reliable source or reference for specific cases and to verify accent placement.