I took for granted all the times.
That I thought It would last somehow .

This is strech of a 1980's song. I totally understand what he meant when he uses the expression "take for granted". I happens all the time in relationships. What bother me in this part is when he uses "that". Would It be better to use (when) or use nothing instead?

Ex: I took for granted all the times. I thought It would last somehow.

Question

I took for granted all the times.
That I thought It would last somehow .

This is strech of a 1980's song. I totally understand what he meant when he uses the expression "take for granted". I happens all the time in relationships. What  bother me in this part is when he uses "that".  Would It be better to use (when) or  use nothing instead?

Ex: I took for granted all the times. I thought It would last somehow.

Answer

"It" does not belong there. I don't think it's in the song.

There should be no period after "times".  "That" is not the beginning of a new sentence.  It is only the first word of a new line.

"That" is natural.  It's the same as "I liked all the apples that I ate last night".

Answer

All three ways are fine. All the times that I... = All the times when I... = All the times I...