are happy
Those children are happy.
They are not happy.
Quieren que pensemos que son felices.
They want us to think that they are happy.
My plants are happy.
They are happy.
Los estudiantes son felices, pero los profesores no lo son.
The students are happy, but the teachers are not.
Si son felices en esa gruta, no los echaré.
If they are happy in that cave, I won't kick them out.
— El manantial de las colinas (1986)
I think they are happy.