Which word in the sentence is a gerund?
a-pounding
b-blowing
c-driving
d-exiting

in june, we will have been married for eighteen months. (i am assuming this is what you want? the sentence, as you have presented it, is grammatically incorrect--   you want it corrected, yes? )

иσ σиє тяυℓу киσωѕ ιf нє ∂ιє∂, кαωαкι кιℓℓє∂ нιм ιи тнє мαиʝα тнσ

remember, the goal of an adjective clause is to add more information to a noun or a pronoun. as you can see from the examples above, you can add information by including a longer adjective clause or tighten up a sentence by turning the adjective clause into an adjective phrase.

the speaker versus the boy.