Yod with sheva

The ALA/LC romanization of words like this is discussed in Hebraica  Cataloging on p. 17.  This is an imperative from a Pi'el verb of which the second consonant is yod; when such a yod is vocalized with sheva, we romanize the sheva as "e"-- the example given is "mesayerim.".   Similarly, one should romanize "hayekhi".