Usual and "unusual" indeterminate forms

Question

I've always read there are seven "main" indeterminate forms, 0/0, ∞/∞,∞−∞,0^∞,0⁰,1^∞,∞⁰.

I've recently started working more keenly on analysis, and the seven "main" forms are never expanded to include "unusual" forms. Does anyone know what are they ?

I've read somewhere that things likes lim [sin x + sin x] as x goes to ∞ could be one such indetermination. What do you think ?

All the best, G.