The “understood” subject (you, a pronoun, is the “understood” subject). The “Understood You” occurs when you give a command or order to someone or suggest something to someone. These sentences are unique in that the subjects of these sentences are not written. Instead, the subject is said to be an “understood subject.”
Please, go to the store.
Bring me a glass of tea.
Gerunds (formed by adding –ing to a verb: swimming, driving, learning, jogging, writing)
Swimming provides cardiovascular exercise.
Driving in Los Angeles can be very dangerous.
Learning is inspirational.
Infinitives (the preposition to + a verb: to swim, to drive, to learn, to exercise, to agree)
To swim is always a choice.
To drive can be quite nerve-wracking.
To learn is a challenge I enjoy.
Multiple
sentence with multiple subjects.
Susan, Tracy, and Charlotte drove to the beach together.