Он читал эти лекции в течение следу

Он читал эти лекции в течение следующих 26 лет, они давали неплохой заработок, хотя и были ему скучны.

Результаты (английский) 1:

He read those lectures over the next 26 years, they have given good earnings, although they are boring.

Результаты (английский) 2:

He gave these lectures over the next 26 years, they were given a decent wage, although they were bored.

Результаты (английский) 3:

He taught these lectures for the next 26 years, they were given a good earnings, while Jospin had been to him.