Past Tense of “forsake”
The past tense of forsake is forsook; the past participle is forsaken.
Why “forsake” behaves this way
"Forsake" comes from Old English "forsacan," combining "for-" with "sacan," related to the noun "sacu" — the same root behind the modern phrase "for the sake of." That root originally meant something like "a legal dispute" or "a claim," so "forsake" literally meant "to give up one's claim" or "to renounce," a legal-sounding origin for a word that now mostly describes abandoning a person or place. The King James Bible's rendering of Christ's words on the cross — "why hast thou forsaken me" — is likely the single most-quoted instance of this verb in the English language, and it's a major reason the word survives at all in modern usage, carried almost entirely by religious and literary quotation rather than ordinary speech.
"Forsake" belongs to the same strong-verb ablaut class (class 6) as "shake" and "take," which is exactly why its irregular pattern — forsake/forsook/forsaken — mirrors "shake/shook/shaken" and "take/took/taken" so precisely; all three verbs shifted their root vowel through the identical historical stages as they descended from Old English.
The common confusion
"Forsaken" has drifted into common use as a standalone adjective ("a forsaken village," "godforsaken") far more often than "forsook" appears as an active verb in everyday speech, since the word itself has become mostly literary or religious in register — most speakers today would say "abandoned" or "left" rather than "forsook" in ordinary conversation. A further wrinkle is that "forsaken" sometimes gets confused with "forgotten" in casual paraphrase, even though the two words carry different weight — "forgotten" implies simple lapse of memory, while "forsaken" implies a deliberate, often painful abandonment of someone who was relied upon.
How it's actually used
"Forsake" carries far more emotional and moral weight than a neutral synonym like "leave" or "quit" — it implies breaking a bond, duty, or loyalty, which is why it appears so often in wedding vows, religious texts, and dramatic writing rather than casual description of simply changing plans. Wedding vows in some traditional ceremonies still include phrasing built on this root ("forsaking all others"), a formal, ceremonial use that, like the biblical quotation, keeps an otherwise rare verb alive in modern English almost exclusively through fixed ritual language. Outside of scripture and ceremony, contemporary writers sometimes reach for "forsake" specifically to signal an intentionally old-fashioned or solemn tone, a deliberate stylistic choice rather than an unconscious slip into archaism.
Across the tense system
"Forsaken" as a participle shows up constantly in passive constructions describing abandonment as a state ("felt forsaken," "was forsaken by everyone"), often carrying more of the word's emotional force than the active simple past "forsook" does. Outside of quotation, allusion, and deliberately archaic-sounding prose, "forsook" and "forsaken" both function today as markers of elevated register — a writer reaching for either form is almost always doing so for stylistic weight rather than because a plainer synonym wouldn't otherwise fit.
Common real mistakes
Since ordinary conversation almost never calls for this verb, some writers default to "forsaked" by simple analogy with regular verbs, not realizing "forsake" has kept its ancient strong-verb conjugation intact; the correct forms remain "forsook" for the simple past and "forsaken" for the participle in every register, however old-fashioned the word itself may sound.
Examples
- He forsook his old life to start over completely.
- She has never forsaken her principles, even under pressure.
- They forsook the city for a quieter life in the mountains.
- The village was forsaken after the river changed course.
- I will not be forsaken by those who claim to care.
- He forsook comfort for the sake of his art.
- The old customs were slowly forsaken by younger generations.
- She had forsaken every warning sign along the way.
- "Why hast thou forsaken me" remains one of the most quoted lines in English translation.
- The vows spoke of forsaking all others.
Memory trick
Line it up with its exact grammatical twins: shake/shook/shaken, take/took/taken, forsake/forsook/forsaken — same vowel pattern, same historical class, learn any one and the other two follow the same shape.