The Mom put her baby to sleep and gently placed him in his crib
Gently
birds are flying very gently
The bird gently glided through the air.
The adverb is "gently". An adverb modifies a verb. "Planted", is the verb in this sentence.
The mother gently placed the sleeping baby into its bassinet. This sentence works because the word gently means to carefully handle something.
She gently placed the fragile glass ornament on the shelf.
"in the wind" is the prepositional phrase in the sentence "the tree swayed gently in the wind."
Type gently so you don't get your keyboard keys stuck.
Jenna gently stoked the wing of the baby bird.
She gently caressed the puppy's fur, feeling its softness and warmth in her hands.
The word "gently" is an adverb. The phrase "in her hands" is an adverb phrase.
I gently prodded the horse.