English verb conjugation
MUST SOW

Irregular verb: sow - sowed - sown, sowed

Affirmation

Simple form	V-ing form
I must sow you must sow he must sow we must sow you must sow they must sow	I must be sowing you must be sowing he must be sowing we must be sowing you must be sowing they must be sowing
Perfect	V-ing perfect
I must have sown, sowed you must have sown, sowed he must have sown, sowed we must have sown, sowed you must have sown, sowed they must have sown, sowed	I must have been sowing you must have been sowing he must have been sowing we must have been sowing you must have been sowing they must have been sowing

Negation

Simple form	V-ing form
I must not sow you must not sow he must not sow we must not sow you must not sow they must not sow	I must not be sowing you must not be sowing he must not be sowing we must not be sowing you must not be sowing they must not be sowing
Perfect	V-ing perfect
I must not have sown, sowed you must not have sown, sowed he must not have sown, sowed we must not have sown, sowed you must not have sown, sowed they must not have sown, sowed	I must not have been sowing you must not have been sowing he must not have been sowing we must not have been sowing you must not have been sowing they must not have been sowing

Interrogative form

Simple form	V-ing form
must I sow? must you sow? must he sow? must we sow? must you sow? must they sow?	must I be sowing? must you be sowing? must he be sowing? must we be sowing? must you be sowing? must they be sowing?
Perfect	V-ing perfect
must I have sown, sowed? must you have sown, sowed? must he have sown, sowed? must we have sown, sowed? must you have sown, sowed? must they have sown, sowed?	must I have been sowing? must you have been sowing? must he have been sowing? must we have been sowing? must you have been sowing? must they have been sowing?

Interro-negative form

Simple form	V-ing form
must I not sow? must you not sow? must he not sow? must we not sow? must you not sow? must they not sow?	must I not be sowing? must you not be sowing? must he not be sowing? must we not be sowing? must you not be sowing? must they not be sowing?
Perfect	V-ing perfect
must I not have sown, sowed? must you not have sown, sowed? must he not have sown, sowed? must we not have sown, sowed? must you not have sown, sowed? must they not have sown, sowed?	must I not have been sowing? must you not have been sowing? must he not have been sowing? must we not have been sowing? must you not have been sowing? must they not have been sowing?