Fresh herbs fall into two categories:
#1. Holds up to high temperatures and are added at the beginning of cooking.
Marjoram - Sweet and spicy - substitutions: Oregano (use less), summer savory
Oregano - Peppery and pungent - substitutions: Marjoram (use more), summer savory
Rosemary - Assertive with woodsy, pine aroma and a hint of citrus - substitutions: Thyme, summer savory
Sage - Pungent, slightly bitter, with almost musty aroma - substitutions: Rosemary, thyme
Summer savory - Pine aroma, peppery flavor, similar to thyme and mint - substitutions: Marjoram, oregano, rosemary, thyme
Thyme - Subtle resinous aroma, with a hint of lemon and mint - substitutions: Thyme, summer savory, rosemary
#2. Added at the end of cooking or used raw.
Basil - Sweet and fresh, with a hint of anise and pepper - substitutions: Parsley, mint, cilantro
Chervil - Delicate; reminiscent of parsley, anise - substitutions: Parsley, tarragon
Chives - Delicate onion - substitutions: Green onion tops
Cilantro - Distinctive fresh fragrance with citrus background - substitutions: Parsley, mint
Dill - Fresh and delicate, with a hint of anise - substitutions: Fennel leaves, parsley
Mint - Sweet, cool, refreshing - substitutions: Parsley, bail, cilantro
Parsley - Fresh, subtly grassy - substitutions: Chervil, celery leaves
Tarragon - Delicate licorice - substitutions: Chervil, parsley