Ik dacht dat hij zou komen.
English: I thought that he would come.
The 'verleden toekomende tijd' in Dutch is the past future tense. It is used to talk about something that would happen in the future, seen from a point in the past.
Use this form in Dutch when you want to talk about something that was planned or expected to happen after a certain point in the past, or to express intentions or predictions made in the past.
Ik dacht dat hij zou komen.
English: I thought that he would come.
We zouden gisteren naar het strand gaan.
English: We were going to go to the beach yesterday.
Zij zei dat ze het boek zou lezen.
English: She said that she would read the book.
Hij was van plan te vertrekken.
English: He was planning to leave.
Jullie zouden samen eten.
English: You would eat together.