Hey, quick question…are all verbal nouns considered feminine nouns?

Thanks in advance!

No. A lot of them are, especially the ones ending in -nt, -lt (fágaint, fágáilt etc), but ones like cur, déanamh are not feminine. It isn't that often that you need to know the gender of a verbal noun.

Most of them (those in -adh, -ú, -ó, -í, -amh) are masculine.
Those in -áil, -int, -acht, are feminine.
Those in -ach can be either feminine (cógarnach) or masculine (ceannach)

cogarnach (no síneadh fada there).
The feminine ones traditionally become ... igh when used with "ag". Ag cogarnaigh, ag amhastraigh, ag béicigh, ag seitrigh, etc. This is because "ag" is classed as a dative use, but this is not replicated in the CO.

Thanks, Guys! Awesome/helpful once again!