Irregular verb: spill - spilled, spilt - spilled, spilt
Affirmation
Simple form
I must spill you must spill she must spill we must spill you must spill they must spill
V-ing form
I must be spilling you must be spilling she must be spilling we must be spilling you must be spilling they must be spilling
Perfect
I must have spilled, spilt you must have spilled, spilt she must have spilled, spilt we must have spilled, spilt you must have spilled, spilt they must have spilled, spilt
V-ing perfect
I must have been spilling you must have been spilling she must have been spilling we must have been spilling you must have been spilling they must have been spilling
Negation
Simple form
I must not spill you must not spill she must not spill we must not spill you must not spill they must not spill
V-ing form
I must not be spilling you must not be spilling she must not be spilling we must not be spilling you must not be spilling they must not be spilling
Perfect
I must not have spilled, spilt you must not have spilled, spilt she must not have spilled, spilt we must not have spilled, spilt you must not have spilled, spilt they must not have spilled, spilt
V-ing perfect
I must not have been spilling you must not have been spilling she must not have been spilling we must not have been spilling you must not have been spilling they must not have been spilling
Interrogative form
Simple form
must I spill? must you spill? must she spill? must we spill? must you spill? must they spill?
V-ing form
must I be spilling? must you be spilling? must she be spilling? must we be spilling? must you be spilling? must they be spilling?
Perfect
must I have spilled, spilt? must you have spilled, spilt? must she have spilled, spilt? must we have spilled, spilt? must you have spilled, spilt? must they have spilled, spilt?
V-ing perfect
must I have been spilling? must you have been spilling? must she have been spilling? must we have been spilling? must you have been spilling? must they have been spilling?
Interro-negative form
Simple form
must I not spill? must you not spill? must she not spill? must we not spill? must you not spill? must they not spill?
V-ing form
must I not be spilling? must you not be spilling? must she not be spilling? must we not be spilling? must you not be spilling? must they not be spilling?
Perfect
must I not have spilled, spilt? must you not have spilled, spilt? must she not have spilled, spilt? must we not have spilled, spilt? must you not have spilled, spilt? must they not have spilled, spilt?
V-ing perfect
must I not have been spilling? must you not have been spilling? must she not have been spilling? must we not have been spilling? must you not have been spilling? must they not have been spilling?