If + Simple Present + Imperative Clause

• If it rains, take an umbrella.
• If you see a spider, call me.
• If you feel tired, go to bed early.
• If you hear a strange noise, check it out.
• If you need any help, let me know.

If+Present Progressive + Imperative Clause

• If you are feeling cold, put on a sweater.
• If you are running late, hurry up.
• If you are studying for a test, focus on the material.
• If you are feeling sick, take some medicine.
• If you are cooking dinner, set the table.

If + Present Perfect + Imperative Clause

• If you have finished your homework, watch TV.
• If you have cleaned your room, go outside to play.
• If you have finished your meal, do the dishes.
• If you have completed the project, submit it.
• If you have taken a shower, get dressed.