First Conditional

if + present simple, will + verb for real future possibilities.

Examples

• If it rains, we'll stay home.

Key rules

• Form: if + present simple, will + base verb
• Use it for real or likely future events
• Do not use will in the if-clause
• You can swap clause order: I will go if it is sunny

Common mistakes

• If it will rain, I will stay → If it rains, I will stay
• If I will see him, I tell him → If I see him, I will tell him