FIRST OR SECOND CONDITIONAL? EXERCISE 1 (ESL)
level: Intermediate (B1/B2)
Both the first and second conditional describe hypothetical situations, but they differ in how probable those situations are. The first conditional uses if + present simple + will for real or likely situations; the second uses if + past simple + would for imaginary or unlikely ones. The grammar review below explains the key difference with clear examples.
Grammar review
First conditional vs second conditional: structures and meanings
Both the first and second conditional describe situations and their possible results, but they differ in how likely or real the situation is.
FIRST CONDITIONAL
Structure: If + present simple, will + base verb
Use for real, possible, or likely situations, the condition could genuinely happen.
“If it snows tonight, the schools will close.” (snow is possible)
“If she calls me back, I'll tell her the news.” (realistic outcome)
SECOND CONDITIONAL
Structure: If + past simple, would + base verb
Use for unreal, hypothetical, or unlikely situations, the condition is imaginary or not expected to happen.
“If I had a bigger kitchen, I would cook more often.” (not currently true)
“If he spoke French, he would get the job.” (hypothetical)
Key rule: Never use would in the if clause of either conditional.
✗ If I would have more time… ✓ If I had more time…
Both the first and second conditional describe situations and their possible results, but they differ in how likely or real the situation is.
FIRST CONDITIONAL
Structure: If + present simple, will + base verb
Use for real, possible, or likely situations, the condition could genuinely happen.
“If it snows tonight, the schools will close.” (snow is possible)
“If she calls me back, I'll tell her the news.” (realistic outcome)
SECOND CONDITIONAL
Structure: If + past simple, would + base verb
Use for unreal, hypothetical, or unlikely situations, the condition is imaginary or not expected to happen.
“If I had a bigger kitchen, I would cook more often.” (not currently true)
“If he spoke French, he would get the job.” (hypothetical)
Key rule: Never use would in the if clause of either conditional.
✗ If I would have more time… ✓ If I had more time…
Choose the correct verb form to complete each conditional sentence.
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? 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)
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? 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)
