I must conjecture you must conjecture she must conjecture we must conjecture you must conjecture they must conjecture
V-ing form
I must be conjecturing you must be conjecturing she must be conjecturing we must be conjecturing you must be conjecturing they must be conjecturing
Perfect
I must have conjectured you must have conjectured she must have conjectured we must have conjectured you must have conjectured they must have conjectured
V-ing perfect
I must have been conjecturing you must have been conjecturing she must have been conjecturing we must have been conjecturing you must have been conjecturing they must have been conjecturing
Negation
Simple form
I must not conjecture you must not conjecture she must not conjecture we must not conjecture you must not conjecture they must not conjecture
V-ing form
I must not be conjecturing you must not be conjecturing she must not be conjecturing we must not be conjecturing you must not be conjecturing they must not be conjecturing
Perfect
I must not have conjectured you must not have conjectured she must not have conjectured we must not have conjectured you must not have conjectured they must not have conjectured
V-ing perfect
I must not have been conjecturing you must not have been conjecturing she must not have been conjecturing we must not have been conjecturing you must not have been conjecturing they must not have been conjecturing
Interrogative form
Simple form
must I conjecture? must you conjecture? must she conjecture? must we conjecture? must you conjecture? must they conjecture?
V-ing form
must I be conjecturing? must you be conjecturing? must she be conjecturing? must we be conjecturing? must you be conjecturing? must they be conjecturing?
Perfect
must I have conjectured? must you have conjectured? must she have conjectured? must we have conjectured? must you have conjectured? must they have conjectured?
V-ing perfect
must I have been conjecturing? must you have been conjecturing? must she have been conjecturing? must we have been conjecturing? must you have been conjecturing? must they have been conjecturing?
Interro-negative form
Simple form
must I not conjecture? must you not conjecture? must she not conjecture? must we not conjecture? must you not conjecture? must they not conjecture?
V-ing form
must I not be conjecturing? must you not be conjecturing? must she not be conjecturing? must we not be conjecturing? must you not be conjecturing? must they not be conjecturing?
Perfect
must I not have conjectured? must you not have conjectured? must she not have conjectured? must we not have conjectured? must you not have conjectured? must they not have conjectured?
V-ing perfect
must I not have been conjecturing? must you not have been conjecturing? must she not have been conjecturing? must we not have been conjecturing? must you not have been conjecturing? must they not have been conjecturing?