English verb conjugation
MUST SCUBA-DIVE

Irregular verb: scuba-dive - scuba-dived, scuba-dove - scuba-dived

Affirmation

Simple form	V-ing form
I must scuba-dive you must scuba-dive he must scuba-dive we must scuba-dive you must scuba-dive they must scuba-dive	I must be scuba-diving you must be scuba-diving he must be scuba-diving we must be scuba-diving you must be scuba-diving they must be scuba-diving
Perfect	V-ing perfect
I must have scuba-dived you must have scuba-dived he must have scuba-dived we must have scuba-dived you must have scuba-dived they must have scuba-dived	I must have been scuba-diving you must have been scuba-diving he must have been scuba-diving we must have been scuba-diving you must have been scuba-diving they must have been scuba-diving

Negation

Simple form	V-ing form
I must not scuba-dive you must not scuba-dive he must not scuba-dive we must not scuba-dive you must not scuba-dive they must not scuba-dive	I must not be scuba-diving you must not be scuba-diving he must not be scuba-diving we must not be scuba-diving you must not be scuba-diving they must not be scuba-diving
Perfect	V-ing perfect
I must not have scuba-dived you must not have scuba-dived he must not have scuba-dived we must not have scuba-dived you must not have scuba-dived they must not have scuba-dived	I must not have been scuba-diving you must not have been scuba-diving he must not have been scuba-diving we must not have been scuba-diving you must not have been scuba-diving they must not have been scuba-diving

Interrogative form

Simple form	V-ing form
must I scuba-dive? must you scuba-dive? must he scuba-dive? must we scuba-dive? must you scuba-dive? must they scuba-dive?	must I be scuba-diving? must you be scuba-diving? must he be scuba-diving? must we be scuba-diving? must you be scuba-diving? must they be scuba-diving?
Perfect	V-ing perfect
must I have scuba-dived? must you have scuba-dived? must he have scuba-dived? must we have scuba-dived? must you have scuba-dived? must they have scuba-dived?	must I have been scuba-diving? must you have been scuba-diving? must he have been scuba-diving? must we have been scuba-diving? must you have been scuba-diving? must they have been scuba-diving?

Interro-negative form

Simple form	V-ing form
must I not scuba-dive? must you not scuba-dive? must he not scuba-dive? must we not scuba-dive? must you not scuba-dive? must they not scuba-dive?	must I not be scuba-diving? must you not be scuba-diving? must he not be scuba-diving? must we not be scuba-diving? must you not be scuba-diving? must they not be scuba-diving?
Perfect	V-ing perfect
must I not have scuba-dived? must you not have scuba-dived? must he not have scuba-dived? must we not have scuba-dived? must you not have scuba-dived? must they not have scuba-dived?	must I not have been scuba-diving? must you not have been scuba-diving? must he not have been scuba-diving? must we not have been scuba-diving? must you not have been scuba-diving? must they not have been scuba-diving?