でも、これで１つ貸しだね。

but; however; though; nevertheless; still; yet; even so; even; however; no matter how; even if; even though; ... or something; either ... or ...; neither ... nor ...; pseudo-; quack; in-name-only; for lack of anything better to do

this (indicating an item near the speaker, the action of the speaker, or the current topic); this person (usu. indicating someone in one's in-group); now; here; I (me); certainly

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.

one; for one thing; only; (not) even; just (e.g. "just try it")

loan; lending; favor; favour; debt; obligation; creditor; method of lending; credit side

be; is; indicates past or completed action; indicates light imperative

indicates emphasis, agreement, request for confirmation, etc.; is it so; hey; come on; listen; not