4th Conjugation Verbs - infinitives - 4

to tinkle, to ring, to clang

to know, to have skill in, to know how to, to know of

to discover

to cover, to conceal, to clothe, to bury

to mutter, to murmur

to hinder, to entangle, to obstruct, to prevent, to delay

to chirp, to twitter,

to sleep (intransitive)

to sleep soundly

to fall asleep