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 has dyslexia and struggles with reading.

He left my message on read.

He is good at one-point reading in shogi.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

He is a master of kunai technique, and no one can imitate his skills.

He is interested in necromancy.