Well, Wikipedia is always a good starting point:https://en.wikipedia.org/wiki/Early_Modern_English#Grammar
Early Modern doesn't have too many big grammatical differences, but here are the main ones:
- it marks the point when the second person pronoun 'thou' fell out of use (in standard English: some English dialects still use it though);
- the alternate conjugation of third person tenses disappeared;
- 'ye' and 'you' becomes simply 'you'.
So second person (thou) adds '(e)st' (thou workest), third person singular (he/she/it) adds either 's' or '(e)th' (he works/worketh), third person plural (they) adds '(e)th' (they worketh). Also, the other second person pronoun (you) is 'ye' in its subject form, but 'you' in object form.
Examples from the King James Bible:
"My God, my God, why hast thou forsaken me? why art thou so far from helping me, and from the words of my roaring?" (Psalm 22:1)
"Our fathers trusted in thee: they trusted, and thou didst deliver them." (Psalm 22:4, note the past simple still adds 'st')
"For he hath not despised nor abhorred the affliction of the afflicted; neither hath he hid his face from him; but when he cried unto him, he heard." (Psalm 22:24)
"But of the fruit of the tree which is in the midst of the garden, God hath said, Ye shall not eat of it, neither shall ye touch it, lest ye die." (Genesis 3:3)
"And I will take you to me for a people, and I will be to you a God: and ye shall know that I am the Lord your God, which bringeth you out from under the burdens of the Egyptians."
There's a bit of vocabulary difference, of course, but grammatically there's not much more to it than those points. Get them sorted and you'll be okay.