Pronunciation guide: IPA symbols, stress and word endings

θ	thin	ð	this	ʃ	she	ʒ	measure
tʃ	church	dʒ	judge	ŋ	sing	j	yes

p b t d k g f v s z h m n l r w sound as in ordinary English spelling.

ˈ main stress, before the stressed syllable: /ˈwɔːtə/ water · ˌ lighter (secondary) stress: /ˌʌndəˈstænd/ understand
ː a long vowel · (r) an r said only in accents that pronounce it (most American, Scottish, Irish)

-s / -es (plurals; he/she form of verbs): /s/ after voiceless sounds (cats), /z/ after voiced (dogs), /ɪz/ after s, z, sh, ch, j sounds (buses, watches). Spelling: -es after s, x, z, ch, sh; consonant + y → -ies (city → cities).
-ed (past): /t/ after voiceless sounds (walked), /d/ after voiced (played), /ɪd/ after t or d (wanted). Spelling: love → loved, stop → stopped, carry → carried.
-ing: make → making, run → running, see → seeing.
Irregular: go, went, gone · be, was, been · see, saw, seen · man → men · child → children · mouse → mice.
Older (King James) forms: -eth = -s (he loveth = he loves) · -est with “thou” (thou lovest) · spake = spoke.

interrogative

UK /ˌɪn.təˈɹɒɡ.ə.tɪv/ · US /ˌɪn.təˈɹɑ.ɡə.tɪv/ adjective, noun

Forms interrogatives

adjective (grammar) Asking or denoting a question. “an interrogative phrase”
adjective Pertaining to inquiry; questioning “He took on an interrogative tone of voice.”
noun (grammar) A word (pronoun, pronominal adjective, or adverb) implying interrogation, or used for asking a question: why, who, when, etc.
noun (typography, archaic) Synonym of question mark ⟨?⟩.
noun (rare) A question; an interrogation.

Synonyms

From Late Latin interrogātīvus, equivalent to interrogate + -ive.

adjective Denoting a question; expressed in the form of a question; as, an interrogative sentence; an interrogative pronoun.
noun A word used in asking questions; as, who which why

Etymology [L. interrogativus: cf. F. interrogatif.]

Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “interrogative”, CC BY-SA 4.0. Details

Sanskrit dictionary entries whose meaning includes “interrogative” (best matches first).

अपि api may be interrogative at the beginning of a sentence.
अपि api may be affixed to an interrogative to make it indefinite. e.g. ko 'pi, any one; kutrāpi, anywhere.
कद् kad (originally the neuter form of the interrogative pronoun ka ), Vedic a particle of interrogation, where? Kad…
हंहो haṃho (i.e. ham + ho ), ind. a vocative particle (corresponding to ‘ho!’ ‘hollo!’); a particle expressing haughtin…
चिद् cid is often joined to interrogative pronouns and adverbs (see 2. ka, katama, katara, kad, kim, katham, kadā, ku…
च ca may be used as an expletive. The native dictionaries assign to ca the following significations or forces: — …
ननु na-nu a strong negative particle = ‘not at all’ (Vedic); a particle of interrogation = the Latin nonne, ‘not?’ ‘is…
कथम् katham is often connected, like kim, with the particles cana, cid, and api, which give an indefinite sense to the i…