1. Check if a vehicle ID starts with T or F
| Vehicle | Odometer | Service Date | Cost | Garage |
| T-500 | 45230 | 2025-01-15 | $320 | Mike's Auto |
| F-221 | 32105 | 2025-01-16 | $150 | Quick Lube |
| S-318 | 18945 | 2025-02-05 | $420 | Downtown Motors |
=REGEXMATCH(A2, "^[TF]")Result: TRUE (for T-500 and F-221); FALSE (for S-318)
The pattern ^[TF] matches any text that starts with either T or F. This is useful for categorizing vehicle types by their ID prefix. Row 2 (T-500) and Row 3 (F-221) both match, while Row 4 (S-318) does not.