αγαπητοι adjective - vocative plural masculine
agapetos  ag-ap-ay-tos': beloved -- (dearly, well) beloved, dear.
ει conditional
ei  i: if, whether, that, etc. -- forasmuch as, if, that, (al-)though, whether.
ουτως adverb
houto  hoo'-to: after that, after (in) this manner, as, even (so), for all that, like(-wise), no more, on this fashion(-wise), so (in like manner), thus, what.
ο definite article - nominative singular masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
θεος noun - nominative singular masculine
theos  theh'-os: a deity; figuratively, a magistrate; by Hebraism, very -- exceeding, God, god(-ly, -ward).
ηγαπησεν verb - aorist active indicative - third person singular
agapao  ag-ap-ah'-o:  to love (in a social or moral sense) -- (be-)love(-ed).
ημας personal pronoun - first person accusative plural
hemas  hay-mas': us -- our, us, we.
και conjunction
kai  kahee: and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
ημεις personal pronoun - first person nominative plural
hemeis  hay-mice': we (only used when emphatic) -- us, we (ourselves).
οφειλομεν verb - present active indicative - first person
opheilo  of-i'-lo: to owe (pecuniarily); figuratively, to be under obligation (ought, must, should); morally, to fail in duty
αλληλους reciprocal pronoun - accusative plural masculine
allelon  al-lay'-lone: one another -- each other, mutual, one another, (the other), (them-, your-)selves, (selves)
αγαπαν verb - present active middle or passive deponent
agapao  ag-ap-ah'-o:  to love (in a social or moral sense) -- (be-)love(-ed).