Robert asked Brian if he knows how to tie a windsor knot, because he had forgotten.
Robert asked Brian if he knows how to tie a windsor knot, because he had forgotten.
nsubj
Number=Sing
Robert
(0)
Robert
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
ask
-
asked
VERB
VBD
obj
Number=Sing
Brian
(1)
Brian
PROPN
NNP
mark
if
-
if
SCONJ
IN
nsubj
Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs
he
-
he
PRON
PRP
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
know
-
knows
VERB
VBZ
obj
PronType=Int
how
-
how
SCONJ
WRB
mark
to
-
to
PART
TO
acl
VerbForm=Inf
tie
-
tie
VERB
VB
det
Definite=Ind|PronType=Art
a
-
a
DET
DT
compound
Number=Sing
windsor
-
windsor
PROPN
NNP
obj
Number=Sing
knot
-
knot
NOUN
NN
punct
,
-
,
PUNCT
,
mark
because
-
because
SCONJ
IN
nsubj
Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs
he
(0)
he
PRON
PRP
aux
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
have
-
had
AUX
VBD
advcl
Tense=Past|VerbForm=Part
forget
-
forgotten
VERB
VBN
punct
.
-
.
PUNCT
.