I ran a Bible Word Study guide for the Hebrew word for 'sea monster' (תַּנִּין - tannin). This word occurs 14 times in the OT, as shown in the Word Study guide below. However, when I click on 'Morphology Chart' for the word, the morphology chart only shows the 5 plural instances of the word and omits the 9 singular instances of the word (see below).
