What are two former stages of English that preceded Modern English?

Answer 1

three of the languages that are steps English went through before it became the Modern English

Answer 2

The earliest forms of English are Old English (up to the 12th century), and Middle English (up to about 1500). Both Old English and Middle English had special letters for the sounds we now represent with "th", so it is difficult to write in those languages using a keyboard which does not use them. I will give examples, substituting "th" where required.

This is Old English, from a letter of King Alfred the Great:

Tha ic tha this eall gemunde, tha gemunde ic hu ic geseah aer thaem the hit eall forhergod waere on forbaerned hu tha ciricean giond eall Angelcynn stodon mathma ond boca gefylda, ond eac micel mengeo Godes thiowa ond tha swithe lytle fiorme thara boca wiston . . .

Middle English is way easier. This is The Cloude of Unknowing:

God to whome all hartys by open and to whome all wyll spekys, and to whome no pry uy thyng is hyd I beseche the so for to clense the intent off my hart wyth the unspekable yefte off thy grace that I may perfytly loue the and worthely pyse the Ame. In the name off the fayer and off the sune and off the holy gooste I charge and beseche the with as much power and vertue as the bond off charite is sufficient to suffer what so eu thow be that this boke schall haue in possession other by ppurtie or by lendynd by kepyng by beryng as a mesynger or els by borowyng that in as muche as in the is by wyll . . .

Of course, the process by which language changes is gradual, so it is difficult to draw the line, especially between Middle English and Modern English. Probably the work of Sir Thomas Malory, ca. 1485, might be considered to be on the cusp. Shakespeare's work is clearly Modern, but is early enough to share some features with Middle English.