hij

Third-person singular, masculine, subjective: he.

heeft

1. third-person singular present indicative of hebben; has.
2. second-person (u) singular present indicative of hebben; have.

een

• Article

  Placed before a singular noun, indicating a general case of a person or thing: a, an. Compare with de and het.

• Num
• Noun

bijna

1. almost
2. soon

prestatie

1. feat, accomplishment, achievement
2. performance

geleverd

past participle of leveren