Home/Tenses/Future Perfect/Spot the Mistake

Future Perfect Error Hunt

HardB2

Every sentence has one grammar mistake. Sets 1-2: click the wrong word and type the fix, then press Enter. Sets 3-4: rewrite the sentence correctly and press Enter.

Set:

Click mode

Exercise 1. Wrong verb form: base/simple instead of past participle

Click the wrong word, type the correct past participle form, then press Enter.

Set:

0/ 10

Correct form:

+ Affirmative

Subjectwill havepast participle.

By 6 PM, she will have finished. · They will have gone.

− Negative

Subjectwon't havepast participle.

I won't have finished yet. · She won't have arrived by then.

? Question

Willsubjecthavepast participle?

Will you have finished by Monday? · Will she have left?

will have: same for all subjects

Subject	Auxiliary	Example
I / You / He / She	will have ✅	She will have finished. (NOT she will has)
It / We / They	will have ✅	They will have arrived. (NOT they will has)

Most common mistake: "will has" ❌. The auxiliary is always will have, never "will has".
Also: past participles never change. "eated" ❌, "goed" ❌, "writed" ❌

Common mistakes to avoid

❌ She will has finished.

✅ She will have finished.

'will has' → always 'will have'

❌ By then, he will have goed.

✅ By then, he will have gone.

go → gone (not 'goed')

❌ I will have eated by 7.

✅ I will have eaten by 7.

eat → eaten (not 'eated')

❌ They will haven't left.

✅ They won't have left.

negative = won't have (not 'will haven't')

❌ Will she has arrived?

✅ Will she have arrived?

questions too: will + have (not has)

Irregular past participles

go → goneeat → eatenwrite → writtentake → takenmake → madeleave → leftbuild → builtfind → foundspend → spentbuy → boughtsend → sentcome → comerun → runtell → toldgrow → grown

Key time expressions

by tomorrowby Mondayby next weekby the time + clauseby thenby the end of...alreadyyet (negative)

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Home/Tenses/Future Perfect/Spot the Mistake

Future Perfect Error Hunt

HardB2

Every sentence has one grammar mistake. Sets 1-2: click the wrong word and type the fix, then press Enter. Sets 3-4: rewrite the sentence correctly and press Enter.

Set:

Click mode

Exercise 1. Wrong verb form: base/simple instead of past participle

Click the wrong word, type the correct past participle form, then press Enter.

Set:

0/ 10

Correct form:

+ Affirmative

Subjectwill havepast participle.

By 6 PM, she will have finished. · They will have gone.

− Negative

Subjectwon't havepast participle.

I won't have finished yet. · She won't have arrived by then.

? Question

Willsubjecthavepast participle?

Will you have finished by Monday? · Will she have left?

will have: same for all subjects

Subject	Auxiliary	Example
I / You / He / She	will have ✅	She will have finished. (NOT she will has)
It / We / They	will have ✅	They will have arrived. (NOT they will has)

Most common mistake: "will has" ❌. The auxiliary is always will have, never "will has".
Also: past participles never change. "eated" ❌, "goed" ❌, "writed" ❌

Common mistakes to avoid

❌ She will has finished.

✅ She will have finished.

'will has' → always 'will have'

❌ By then, he will have goed.

✅ By then, he will have gone.

go → gone (not 'goed')

❌ I will have eated by 7.

✅ I will have eaten by 7.

eat → eaten (not 'eated')

❌ They will haven't left.

✅ They won't have left.

negative = won't have (not 'will haven't')

❌ Will she has arrived?

✅ Will she have arrived?

questions too: will + have (not has)

Irregular past participles

Key time expressions

by tomorrowby Mondayby next weekby the time + clauseby thenby the end of...alreadyyet (negative)

👑

Print it, drill it, own it

Worksheets, SpeedRound, no ads. $2.50 a month.

See PRO →

← Fill in the Blank Next: Sentence Builder →