193 Permission Auxiliary Equivalent expressions for use in exceptional cases may is permitted is allowed is permissible need not it is not required that no is required … Do not use or in this context. Do not use instead of in this context. “possible” “impossible” “can” “may” signifies permission expressed by the standard, whereas refers to the ability of a user of the “May” “can” standard or to a possibility open to him. Possibility and Capability The auxiliaries shown in Table 194 are used for statements of possibility and capability, whether material, physical or causal. 194 Possibility and Capability Auxiliary Equivalent expressions for use in exceptional can be able to there is a possibility of it is possible to cannot be unable to is no possibility of it is not possible to
193 Permission Auxiliary Equivalent expressions for use in exceptional cases may is permitted is allowed is permissible need not it is not required that no … is required Do not use “possible” or “impossible” in this context. Do not use “can” instead of “may” in this context. “May” signifies permission expressed by the standard, whereas “can” refers to the ability of a user of the standard or to a possibility open to him. Possibility and Capability The auxiliaries shown in Table 194 are used for statements of possibility and capability, whether material, physical or causal. 194 Possibility and Capability Auxiliary Equivalent expressions for use in exceptional can be able to there is a possibility of it is possible to cannot be unable to is no possibility of it is not possible to