to miss

I know that ‘miss’ can be either stative or dynamic (which is true of a number of verbs, I think, depending on their meaning).

I miss my dad. (stative)
This table is missing one leg. (dynamic)

But I’ve seen many times sentences like ’ I would be missing’ , ’ We have been missing you’, in which the meaning is that of a felling,emotion, so could someone tell me why ‘miss’ can be used in the ing form in the above sentences?

Sentences like “I’m missing my dad” and “We have been missing you” are OK because native speakers use the verb that way. This overrides any “rule” you may have learned that might appear to say otherwise. I think you may be placing too much emphasis on classifying verbs as stative or dynamic, and worrying too much about why verbs you think ought to be stative can sometimes have -ing forms. Sure, there are clear-cut cases like we never say “He’s owning three houses”, but then there are lots of grey areas around the edges.

Thank you so much for clearing it.