Once you feel confident about your language, experiment and expand:
1	Once	once	SCONJ	IN	_	3	mark	3:mark	Discourse=contingency-condition:56->57:1
2	you	you	PRON	PRP	Case=Nom|Number=Sing|Person=2|PronType=Prs	3	nsubj	3:nsubj|4:nsubj:xsubj	Entity=(5-person-giv:act-cf1*-1-ana)
3	feel	feel	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	9	advcl	9:advcl:once	_
4	confident	confident	ADJ	JJ	Degree=Pos	3	xcomp	3:xcomp	_
5	about	about	ADP	IN	_	7	case	7:case	_
6	your	your	PRON	PRP$	Case=Gen|Number=Sing|Person=2|Poss=Yes|PronType=Prs	7	nmod:poss	7:nmod:poss	Entity=(4-abstract-giv:act-cf2-2-coref(5-person-giv:act-cf1*-1-ana)
7	language	language	NOUN	NN	Number=Sing	4	obl	4:obl:about	Entity=4)|SpaceAfter=No
8	,	,	PUNCT	,	_	3	punct	3:punct	_
9	experiment	experiment	VERB	VB	Mood=Imp|Person=2|VerbForm=Fin	0	root	0:root	Discourse=joint-other_m:57->54:1
10	and	and	CCONJ	CC	_	11	cc	11:cc	_
11	expand	expand	VERB	VB	Mood=Imp|Person=2|VerbForm=Fin	9	conj	9:conj:and	SpaceAfter=No
12	:	:	PUNCT	:	_	9	punct	9:punct	_
