もし、システムの完全な入れ替えが必要ということになれば、彼らは古いシステムで満足することと思う。

Sentence Analyzer

English Translation

If it's going to require a total restructuring, I'm sure they will be satisfied with the old system.

Furigana

もし、システムの完全(かんぜん)な入(い)れ替(か)えが必要(ひつよう)ということになれば、彼(かれ)らは古(ふる)いシステムで満足(まんぞく)することと思(おも)う。

Romanji

Moshi, shisutemu no kanzenna irekae ga hitsuyō toiu koto ni nareba, karera wa furui shisutemu de manzokusuru koto to omou.

Words

若し (もし)

if; in case; supposing

システム (システム)

system

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

完全 (かんぜん)

perfection; completeness

入れ替え (いれかえ)

replacement; substitution; change; shunting (rail); switching

が (が)

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

必要 (ひつよう)

necessary; needed; essential; indispensable; necessity; need; requirement

と言う (という、とゆう)

called; named; as many as; as much as; all X; every X

事 (こと、こん)

thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as

に (に)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

成る (なる)

to become; to get; to grow; to be; to reach; to attain; to result in; to prove to be; to consist of; to be composed of; to succeed; to be complete; to change into; to be exchanged for; to play a role; to be promoted; to do ...

彼ら (かれら)

they (usually male); them

は (は)

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

古い (ふるい)

old (not person); aged; ancient; antiquated; stale; threadbare; outmoded; obsolete article

で (で、にて)

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

満足 (まんぞく)

satisfaction; contentment; complacency; sufficient; enough; adequate; proper

と (と)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

思う (おもう)

to think; to consider; to believe; to think (of doing); to plan (to do); to judge; to assess; to regard; to imagine; to suppose; to dream; to expect; to look forward to; to feel; to desire; to want; to recall; to remember