Learn French: Je regarde la ruche qui bourdonne et j'en admire la forme. - I look at the buzzing beehive and I admire its shape.

While sa forme is sometimes used in casual speech, proper French strongly prefers using the pronoun en combined with a definite article (la) to show possession for inanimate objects or concepts, like la ruche. You can think of en as meaning "of it," making the literal structure "I admire the shape of it."

Why is en placed before admire rather than next to forme?

Because en is an object pronoun, French grammar requires it to be placed immediately before the conjugated verb that it relates to. So even though it translates as "its" and logically describes la forme, it must go directly in front of admire.

Doesn't qui mean "who"? Why is it used for a beehive in qui bourdonne?

In French, the relative pronoun qui is used for both people ("who") and things ("which/that") whenever it acts as the subject of the following verb. Since the beehive is the subject doing the buzzing, we must use qui regardless of the fact that it is an inanimate object.

Why isn't there a preposition like à after regarde to mean "look at"?