English verb conjugation
MUST SCATHE

Regular verb: scathe - scathed - scathed

Affirmation

Simple form	V-ing form
I must scathe you must scathe he must scathe we must scathe you must scathe they must scathe	I must be scathing you must be scathing he must be scathing we must be scathing you must be scathing they must be scathing
Perfect	V-ing perfect
I must have scathed you must have scathed he must have scathed we must have scathed you must have scathed they must have scathed	I must have been scathing you must have been scathing he must have been scathing we must have been scathing you must have been scathing they must have been scathing

Negation

Simple form	V-ing form
I mustn't scathe you mustn't scathe he mustn't scathe we mustn't scathe you mustn't scathe they mustn't scathe	I mustn't be scathing you mustn't be scathing he mustn't be scathing we mustn't be scathing you mustn't be scathing they mustn't be scathing
Perfect	V-ing perfect
I mustn't have scathed you mustn't have scathed he mustn't have scathed we mustn't have scathed you mustn't have scathed they mustn't have scathed	I mustn't have been scathing you mustn't have been scathing he mustn't have been scathing we mustn't have been scathing you mustn't have been scathing they mustn't have been scathing

Interrogative form

Simple form	V-ing form
must I scathe? must you scathe? must he scathe? must we scathe? must you scathe? must they scathe?	must I be scathing? must you be scathing? must he be scathing? must we be scathing? must you be scathing? must they be scathing?
Perfect	V-ing perfect
must I have scathed? must you have scathed? must he have scathed? must we have scathed? must you have scathed? must they have scathed?	must I have been scathing? must you have been scathing? must he have been scathing? must we have been scathing? must you have been scathing? must they have been scathing?

Interro-negative form

Simple form	V-ing form
mustn't I scathe? mustn't you scathe? mustn't he scathe? mustn't we scathe? mustn't you scathe? mustn't they scathe?	mustn't I be scathing? mustn't you be scathing? mustn't he be scathing? mustn't we be scathing? mustn't you be scathing? mustn't they be scathing?
Perfect	V-ing perfect
mustn't I have scathed? mustn't you have scathed? mustn't he have scathed? mustn't we have scathed? mustn't you have scathed? mustn't they have scathed?	mustn't I have been scathing? mustn't you have been scathing? mustn't he have been scathing? mustn't we have been scathing? mustn't you have been scathing? mustn't they have been scathing?