Word Study
[2x]
: MÜ Mä Mæ Mé Mê Mö Mœ M- M. M1 M2 M3 M< Ma Mb Mc Md Me Mf Mg Mh Mi Mk Ml Mm Mn Mo Mp Mr Ms Mt Mu Mv Mw Mx My
modal auxiliary
CIDE DICTIONARY
modal auxiliary, n.
Any one of the auxiliary verbs of English, such as can , may , will , shall , must , might , could , would , or should , which are used together with the infinitive form of another verb to express distinctions of mood{2}, such as uncertainty, possibility, command, emphasis, and obligation. [PJC]
For further exploring for "modal auxiliary" in Webster Dictionary Online