Hola A

Indeed, you've brought up an interesting point about the verb "ver" in Spanish and its conjugation in the 2nd person plural (vosotros/as). The correct form of "ver" in the 2nd person plural is "veis" without the accent. This might seem irregular because many other verbs in this conjugation group include an accent in their corresponding forms (like "podéis" from "poder"), but "ver" is actually regular within its own conjugation pattern for the "vosotros/as" form.

"Veis" is indeed considered a monosyllabic word in terms of how stress is applied in Spanish phonetics, even though it might appear to have two syllables at a glance. In Spanish, monosyllabic words do not carry accent marks unless they are used to differentiate between words that are otherwise spelled the same (diacritical accents), which is not the case with "veis". 

Here you can find more information about how to use accents in Spanish.

 Thanks for your question, and I hope this clarifies the conjugation for "ver"!

Saludos

Silvia