So, then, I grabbed him, and when I grabbed him, I put him under the bed, and I went outside.
( So ( , ( ( ( ( ( then ( , ( I ( grabbed him ) ) ) ) , ) and ) ( ( ( ( ( when ( I ( grabbed him ) ) ) ( , ( I ( ( put him ) ( under ( the bed ) ) ) ) ) ) , ) and ) ( I ( went outside ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB So)) (, ,) (S (ADVP (RB then)) (, ,) (NP (PRP I)) (VP (VBD grabbed) (NP (PRP him)))) (, ,) (CC and) (S (S (SBAR (WHADVP (WRB when)) (S (NP (PRP I)) (VP (VBD grabbed) (NP (PRP him))))) (, ,) (NP (PRP I)) (VP (VBD put) (NP (PRP him)) (PP (IN under) (NP (DT the) (NN bed))))) (, ,) (CC and) (S (NP (PRP I)) (VP (VBD went) (ADVP (RB outside))))) (. .)))
We both hid under the covers.
( We ( both ( ( hid ( under ( the covers ) ) ) . ) ) )
(ROOT (S (NP (PRP We)) (DT both) (VP (VBP hid) (PP (IN under) (NP (DT the) (NNS covers)))) (. .)))