English verb conjugation
MUST THIEVE

Regular verb: thieve - thieved - thieved

Affirmation

Simple form	V-ing form
I must thieve you must thieve he must thieve we must thieve you must thieve they must thieve	I must be thieving you must be thieving he must be thieving we must be thieving you must be thieving they must be thieving
Perfect	V-ing perfect
I must have thieved you must have thieved he must have thieved we must have thieved you must have thieved they must have thieved	I must have been thieving you must have been thieving he must have been thieving we must have been thieving you must have been thieving they must have been thieving

Negation

Simple form	V-ing form
I must not thieve you must not thieve he must not thieve we must not thieve you must not thieve they must not thieve	I must not be thieving you must not be thieving he must not be thieving we must not be thieving you must not be thieving they must not be thieving
Perfect	V-ing perfect
I must not have thieved you must not have thieved he must not have thieved we must not have thieved you must not have thieved they must not have thieved	I must not have been thieving you must not have been thieving he must not have been thieving we must not have been thieving you must not have been thieving they must not have been thieving

Interrogative form

Simple form	V-ing form
must I thieve? must you thieve? must he thieve? must we thieve? must you thieve? must they thieve?	must I be thieving? must you be thieving? must he be thieving? must we be thieving? must you be thieving? must they be thieving?
Perfect	V-ing perfect
must I have thieved? must you have thieved? must he have thieved? must we have thieved? must you have thieved? must they have thieved?	must I have been thieving? must you have been thieving? must he have been thieving? must we have been thieving? must you have been thieving? must they have been thieving?

Interro-negative form

Simple form	V-ing form
must I not thieve? must you not thieve? must he not thieve? must we not thieve? must you not thieve? must they not thieve?	must I not be thieving? must you not be thieving? must he not be thieving? must we not be thieving? must you not be thieving? must they not be thieving?
Perfect	V-ing perfect
must I not have thieved? must you not have thieved? must he not have thieved? must we not have thieved? must you not have thieved? must they not have thieved?	must I not have been thieving? must you not have been thieving? must he not have been thieving? must we not have been thieving? must you not have been thieving? must they not have been thieving?