<span class="searchmatch">opensper</span> first-person singular dependent-clause present indicative of opensperren sper open...
inflection of opensperren: first-person singular present indicative (in case of inversion) second-person singular present indicative imperative <span class="searchmatch">opensper</span>...
past tense present tense past tense 1st person singular sper open sperde open <span class="searchmatch">opensper</span> opensperde 2nd person sing. (jij) spert open, sper open2 sperde open openspert...