Is there such a thing a 3 possible in Spades?
The possible trick winners of this hand are the three Kings and the short ♣'s which allows a 3rd trick ruff/cut.
Having only two spades is a weakness. It means that there is a higher probability an opponent has a long ♠ suit.
The game of Spades encourage conservative bids since an overtrick (bag) results in a smaller loss compared to an undertrick.
I would bid 2 with this hand almost always.  If I am at the 4th sit and the sum of bidding is 7 before my bid, I would bid 3. (probably when someone bids nil)
To answer the question of the headline, in the bidding phase each player must say a single number between 0 and 13, nothing more.  She can't say: &quot;2 and maybe 3&quot;. Of course that in a game among friends she can say whatever.