MIXED CONDITIONAL TENSES EXERCISE 1 (ESL)
level: Intermediate (B1/B2)
✓ Useful for IELTS
✓ Useful for Cambridge B2/C1
English has four conditional patterns, each expressing a different relationship between condition and result — real or unreal, present or past. This exercise mixes all four types together, so you need to identify the pattern before choosing the correct form.
Grammar review
Mixed conditional tenses — which conditional when?
This exercise tests all main conditional forms in English. The table below is a quick guide to choosing the right one.
Zero conditional — general truths and facts
If + simple present → simple present
“If you heat water to 100°C, it boils.”
First conditional — real, likely future situation
If + simple present → will + base verb
“If it rains, I will stay home.”
Second conditional — hypothetical or unlikely present/future situation
If + simple past → would + base verb
“If I won the lottery, I would buy a house.”
Third conditional — imaginary past situation (didn’t happen)
If + past perfect → would have + past participle
“If she had studied, she would have passed.”
Key question to ask: Is the situation real/possible (1st)? Hypothetical/unlikely (2nd)? Based on a past that didn’t happen (3rd)?
This exercise tests all main conditional forms in English. The table below is a quick guide to choosing the right one.
Zero conditional — general truths and facts
If + simple present → simple present
“If you heat water to 100°C, it boils.”
First conditional — real, likely future situation
If + simple present → will + base verb
“If it rains, I will stay home.”
Second conditional — hypothetical or unlikely present/future situation
If + simple past → would + base verb
“If I won the lottery, I would buy a house.”
Third conditional — imaginary past situation (didn’t happen)
If + past perfect → would have + past participle
“If she had studied, she would have passed.”
Key question to ask: Is the situation real/possible (1st)? Hypothetical/unlikely (2nd)? Based on a past that didn’t happen (3rd)?
Choose the correct verb form to complete each conditional sentence.
1.
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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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8.
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9.
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10.
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11.
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12.
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13.
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14.
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15.
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16.
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17.
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18.
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19.
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20.
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CHECK OUT OUR OTHER CONDITIONAL EXERCISES:
The first conditional 1 (B)
The first conditional 2 (B)
The first conditional 3 (B)
The second conditional 1 (I)
The second conditional 2 (I)
First or second conditional? 1 (I)
First or second conditional? 2 (I)
The third conditional 1 (I/A)
The third conditional 2 (I/A)
Conditional tenses (mixed) 1 (I)
Conditional tenses (mixed) 2 (I)
Conditional or future? 1 (I)
Conditional, future, or present? 1 (I)
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The first conditional 1 (B)
The first conditional 2 (B)
The first conditional 3 (B)
The second conditional 1 (I)
The second conditional 2 (I)
First or second conditional? 1 (I)
First or second conditional? 2 (I)
The third conditional 1 (I/A)
The third conditional 2 (I/A)
Conditional tenses (mixed) 1 (I)
Conditional tenses (mixed) 2 (I)
Conditional or future? 1 (I)
Conditional, future, or present? 1 (I)
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