あなたが手伝ってくれれば私は本当に助かる。

If you could assist me, it would be a great help.

あなたが手伝(てつだ)ってくれれば私(わたし)は本当(ほんとう)に助(たす)かる。

Anata ga tetsudattekurereba watashi wa hontōni tasukaru.

貴方 (あなた)

you (referring to someone of equal or lower status); dear (what a wife calls a husband)

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

手伝う (てつだう)

to help; to assist; to aid; to contribute to; to be a factor in

私 (わたし、わたくし)

I; me; private affairs; personal matter; secrecy; selfishness

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

本当に (ほんとうに、ほんとに、ホントに、ホントーに、ホントウに)

really; truly

助かる (たすかる)

to be saved; to be rescued; to survive; to escape harm; to be spared damage; to be helped; to be saved trouble

Readings: シュ、ズ、て、て-、 -て、た-

Meaning: hand

Readings: デン、テン、つた.わる、つた.える、つた.う、つだ.う、 -づた.い、つて

Meanings: transmit, go along, walk along, follow, report, communicate, legend, tradition

Readings: シ、わたくし、わたし

Meanings: private, I, me

Readings: ホン、もと

Meanings: book, present, main, origin, true, real, counter for long cylindrical things

Readings: トウ、あ.たる、あ.たり、あ.てる、あ.て、まさ.に、まさ.にべし

Meanings: hit, right, appropriate, himself

Readings: ジョ、たす.ける、たす.かる、す.ける、すけ

Meanings: help, rescue, assist