lingeni fu'ivla

x1 has [self-proclaimed] gender x2 (property of x1)

x1 identifies their social gender as x2 [a man, a woman, non-binary (i.e. neither, but still exhibits gendered behaviour), agender (opts out of gender)]. Gender here denotes a social role loosely defined as a combination of how one relates to others socially/societally and how one presents oneself. Gender here is not determined by chromosomal makeup, genital configuration, or sexual/romantic orientation of x1. x2 can contain such verbs as nanmu - 'male', ninmu - 'female', mlini'u - 'demi-girl' (only loosely feminine), mlinau - 'demi-guy' (only loosely masculine), cenba - 'genderfluid', genderqueer, nunmu = 'non-binary' and 'agender'. See also: tracinse.

In notes:

x1 is an agender humanoid person [not necessarily adult].
x1 is cisgender, exhibiting gender x2 (ka), which is the one they were assigned at birth
x1 is transgender, exhibiting gender x2 (ka), which differs from their assigned gender x3 (ka)