DLAB - Defense Language Aptitude Battery Recombining Language Segments Questions and Answers

You are given the following rules for a fictional language:
1.
Word order is Subject-Verb-Object.
2.
To make a noun plural, add the prefix 'li-'.
3.
To make a verb past tense, add the suffix '-na'.
Given the words: 'gor' (the boy), 'fem' (the girl), 'vek' (sees), and 'bren' (the apple), how would you say 'The girls saw the apple'?