to breathe heavily
לְהִתְנַשֵּׁם
In the present tense, “to breathe heavily” is מִתְנַשֵּׁם (masculine), מִתְנַשֶּׁמֶת (feminine), מִתְנַשְּׁמִים (masculine plural) and מִתְנַשְּׁמוֹת (feminine plural). Root נ-שׁ-מ, binyan הִתְפַּעֵל.
The ability to master Hebrew
has never been easier.