もし私が遅れたら、待たないでくれ。

もし私が遅れたら、待たないでくれ。

In case I am late, you don't have to wait for me.

もし私(わたし)が遅(おく)れたら、待(ま)たないでくれ。

Moshi watashi ga okuretara, matanaidekure.

若し (もし)

if; in case; supposing

私 (わたし、わたくし)

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

が (が)

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

遅れる (おくれる)

to be late; to be delayed; to fall behind schedule; to be overdue

待つ (まつ)

to wait; to await; to look forward to; to anticipate; to depend on; to need

Readings: シ、わたくし、わたし

Meanings: private, I, me

Readings: チ、おく.れる、おく.らす、おそ.い

Meanings: slow, late, back, later

Readings: タイ、ま.つ、 -ま.ち

Meanings: wait, depend on