estar al caer

be imminent; be about to happen or arrive

→ estar
phrase Rare #48,760
be imminent; be about to happen or arrive Used for an event that is about to happen or for a person who is about to arrive. Literally, it means “to be about to fall.” The form changes with the subject, as in “está al caer.”
SP: El invierno está al caer; pronto las montañas se cubrirán de nieve.
EN: Winter is just around the corner; soon the mountains will be covered in snow.