What is the main verb of this sentence?

My pocket book collection can be read anytime during travel.

He gifted me a signed copy of his new book.

He likes to take a walk in the park at dusk.

He is good at one-point reading in shogi.

He lost some of his memory due to damage to the temporal lobe.

He is doing special exercises to train his temporalis muscle.

He felt pain in his temporal fossa.

His temporal line was clearly visible.

He defeated the enemy using a two-sword style.