Every sentence has one grammar mistake. Sets 1 and 2: click the wrong word and type the fix, then press Enter. Sets 3 and 4: rewrite the sentence correctly and press Enter.
Set:
Click mode
Exercise 1: wrong have / has
Click the wrong word, type the correct form, then press Enter.
Set:
0/ 10
1
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Correct form:
2
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3
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4
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5
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6
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7
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9
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10
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Correct form:
+ Affirmative
Subjecthave / haspast participle.
I have worked. · She has eaten. · They have gone.
− Negative
Subjecthaven't / hasn'tpast participle.
I haven't seen him. · She hasn't called. · They haven't arrived.
? Question
Have / Hassubjectpast participle?
Have you seen this film? · Has she arrived?
have vs has
Subject
+
−
?
I / You / We / They
have worked
haven't worked
Have you worked?
He / She / It ★
has worked
hasn't worked
Has she worked?
★ Key rule: He / She / It always use has / hasn't. After have/has use the past participle, never the base form. She has finished ✅ She have finished ❌ She has finish ❌