HELDUR
From Icelandic Parsed Historical Corpus (IcePaHC)
HELDUR
HELDUR is ADVR; where it means "but", we assume there is a silent "but" or no conjunction.
( (IP-MAT-SPE (ADVP (ADVR heldur-heldur)) (BEPI er-vera) (NP-SBJ (PRO-N það-það)) (NP-PRD (NP-POS (PRO-N þinn-þinn)) (N-N kostur-kostur)) (. ,-,)) (ID FIRSTGRAMMAR,.25))
HELDUR EN
HELDUR EN + IP-INF requires TO, so add an empty one if missing.
(ADVP (ADVR heldur-heldur) (PP (P en-en) (IP-INF (TO *) (VB sjá-sjá) (NP-OB1 (N-A son-sonur) (NP-POS (PRO-A sinn-sinn))) (ADJP-SPR (ADJ-A píndan-píndur)))))
This is consistent with the English corpora:
( (IP-MAT (NP-SBJ (PRO he)) (MD will) (DO do) (NP-OB1 (Q anie) (N thing)) (ADVP (ADVR rather) (PP (P then) (IP-INF (TO *) (VB lose) (NP-OB1 (PRO$ his) (N liveing)))))
More examples
( (IP-MAT (IP-MAT-1 (ADVP (ADV þá-þá)) (RDPI VERÐUR$-VERÐUR) (NEG $a-at) (NP-SBJ (PRO-D honum-hann)) (NP-OB1 (N-A gagn-gagn)) (PP (P að-að) (NP (N-D ljósi-ljós) (NP-POS (NS-G kenninga-kenning))))) (, ,-,) (IP-MAT=1 (NP-SBJ *con*) (ADVP (ADVR heldur-heldur)) (NP-OB1 (N-N mein-mein))) (. .-.)) (ID HOMILIUBOK,.280))