31 Heb “they”; the referent (the Egyptians) has been specified in the translation for clarity.
32 The imperfect tenses in this verse are customary uses, expressing continual action in past time (see §107.e). For other examples of כַּאֲשֶׁר (ka’asher) with כֵּן (ken) expressing a comparison (“just as … so”) see Gen 41:13; Judg 1:7; Isa 31:4. Nothing in the oppression caused this, of course. Rather, the blessing of God (Gen 12:1–3) was on Israel in spite of the efforts of Egypt to hinder it. According to Gen 15 God had foretold that there would be this period of oppression (עָנָה [’anah] in Gen 15:13). In other words, God had decreed and predicted both their becoming a great nation and the oppression to show that he could fulfill his promise to Abraham in spite of the bondage.
33 Heb “they felt a loathing before/because of”; the referent (the Egyptians) has been specified in the translation for clarity.

In other versions

But the more they were oppressed, the more they multiplied and the more they spread abroad. And the Egyptians were in dread of the people of Israel.

But the more they were oppressed, the more they multiplied and spread; so the Egyptians came to dread the Israelites

But the more they oppressed them, the more they multiplied and spread so that the Egyptians came to dread the Israelites.

But the more the Egyptians oppressed them, the more the Israelites multiplied and spread, and the more alarmed the Egyptians became.

And as he oppressed them, so they became many, and so they spread out, and the Egyptians were afraid because of the presence of the Israelites.

But the more they afflicted them, the more they multiplied and grew. And they were grieved because of the children of Israel.

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