Relyn groped in the air with his left hand.
He groped along the ground with his right hand, came up with a rock.
He groped with his free hand, found a handle, grasped it.
He moved to the chair in front of Roark's desk, groping for it with his hand.
He groped with his free hand, encountered something smooth, and finally worked it free.
His father knelt and groped under the beast's head with his hand.
Then the victim groped with his right hand for his knife.
He even squirmed around and groped at the wall behind him with his left hand.
I groped with my left hand like a blind man, until I found a grip that would hold me.
She turns over and the doctor gropes with her rubber-gloved hand.