meaning of "tomo"?

"tomo" as in "分からなくとも"? Does it mean "even if/even though"?

If it does, what's the difference between "分からなくても" and　"分からなくとも"?

Also, how would you conjugate it if it wasn't negative?

Thanks in advance!

"tomo" as in "分からなくとも"? Does it mean "even if/even though"?
Yes, it means "even if one does not know/understand."

If it does, what's the difference between "分からなくても" and　"分からなくとも"?
"...to mo" is more colloquial than "...te mo."

Also, how would you conjugate it if it wasn't negative?
分かっても. It's the te-form + "mo." There is no "...to mo" form for negative.

''...to mo'' form for 分かっても is 分かろうとも.

I think ''te mo'' is more colloquial than ''...to mo''.

: what's the difference between "分からなくても" and　"分からなくとも"?

To mean "even if" or "even though" in daily conversation, the difference between [temo] and [tomo] is small in many cases, I suppose.
Roughly speaking,
[temo] is often used to show a condition in expressing the condition as possible and/or the content of the main clause as pending,
while [tomo] can be used to show a condition in expressing the content of the main clause as decisive.

e.g.

(1) [temo]:
(1-a) We will hold this concert even if we have a slight rain; we cancel it in case thunderclouds are approaching.
: even if we have a slight rain (= even if it drizzles) - [kosame ga fut-temo]
: Whether this concert is held or not is expressed as depending on possible conditions. So here [temo] is better for "if."
(1-b) I don't mind if you go home earlier then I.
: if you go home earlier - [kimi ga saki ni uchi-ni kaet-temo]
: "You go home earlier then I" is expressed as a possible condition. So here [temo] is better for "if."

(2) [tomo]
(2-a) He has become aware of it by the last year at latest.
: by the last year at latest - [osoku-tomo sakunen-made-ni-wa]
: "He has become aware of it" is shown as a fact. So here [tomo] is better.
(2-b) "This is my quest to follow the stars, no matter how hopeless, no matter how far," (from The Impossible Dream in Man of La Mancha).
: no matter how hopeless, no matter how far - [ikani nozomi ga naku-tomo], [ikani tooku ni arou-tomo]
: "This is my quest to follow the stars" is shown as a determination. So here [tomo] is better for "no matter how."

: how would you conjugate it if it wasn't negative?

e.g.

[temo]:
Affirmative: [at-temo] (coming from [ari-temo]) / [hayaku-temo] / [ugoi-temo].
Negative: [naku-temo] / [hayaku-naku-temo] / [ugoka-naku-temo].

[tomo]:
To simply show a condition, like "even if":
Affirmative: [#] / [hayaku-tomo] / [#].
Negative: [naku-tomo] / [hayaku-naku-tomo] / [ugoka-naku-tomo].
# -- [temo] is used instead.
To show a subjunctive condition, like "no matter how":
A word [u] is attached to the preceding word.
Affirmative: [arou-tomo] / [hayakarou-tomo] / [ugokou-tomo].
Negative: [nakarou-tomo] / [hayaku-nakarou-tomo] / [ugoka-zarou-tomo].

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NOT: then I
BUT: than I
(appearing two times)

Thanks.

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