This is actually two questions, which I've lumped together. The first concerns the -eth suffix, the second concerns the -est suffix.

(1) I am aware of the difference in MEANING between "a question is coming" and "a question cometh", which is that the latter conveys a feeling of inexorability, of unstoppability, whereas the former is just an indicative statement. (At least, I THINK that's the difference). But my question is ... what's going on here grammatically? Is the -eth suffix a "mood" which no longer exists in modern English? Is it a tense? Does it have a formal definition? What? I hope an answer cometh.

(2) I have a similar question relating to the "-est" suffix, as in for example the sentence "LOBBEST thou thy Holy Hand Grenade of Antioch towards thy foe".

Can anyone shed any light on either -eth or -est or both?

An interesting question with (in my opinion) a simple answer!

No, they're certainly not tenses, simply archaic forms of the present tense.

(You'll probably have noticed by now that I tend to keep things short and sweet)

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We all have noticed that Chris. Thanks for being such a sweetheart.
I'm not convinced. The -est suffix appears to imply imperative mood to me, wherase -eth doesn't. (This is all supposition of course. I don't know for sure, or I wouldn't be asking).

Hey, does anyone know of any handy web sites which focus on the use of old English?