d291bA%3D%3D - Zero
- ill
- imaginable
- Imperative
- impossible
- in
- Inclusive quantifiers
- Indefinite article
- Indefinite personal pronouns
- Indefinite quantifiers
- Indirect object
- Indirect question
- Indirect speech
- Infinitive
- Infinitive clause
- Infinitives joined by and, but, except, or, than
- ing- clause
- Ing-form
- Initial ellipsis
- Interjection
- Interrogative pronouns
