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.

maybe

/ˈmeɪ.bi/ adverb, adjective, noun

Forms maybes mebbe may-be

adverb Perhaps, possibly. “A small extra effort now can maybe save you much work later.”
adverb (as a pro-sentence) Perhaps that is true (expressing no commitment to a decision or a neutral viewpoint to a statement).
adverb (UK, meiosis) Certainly. “Maybe not the best idea.”
adjective Possible; uncertain.
noun (informal) Something that is possibly true.
noun (informal) An answer that shows neither agreement nor disagreement. “The results of the poll were inconclusive. We got two yeses, three nos, and four maybes.”
noun (informal) A future event that may or may not happen. “About your raise: it's a big maybe.”

Synonyms

From an ellipsis of Middle English it may be, equivalent to may + be. Compare mayhap.

Etymology [For it may be.]

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