I must spin-dry you must spin-dry she must spin-dry we must spin-dry you must spin-dry they must spin-dry
V-ing form
I must be spin-drying you must be spin-drying she must be spin-drying we must be spin-drying you must be spin-drying they must be spin-drying
Perfect
I must have spin-dried you must have spin-dried she must have spin-dried we must have spin-dried you must have spin-dried they must have spin-dried
V-ing perfect
I must have been spin-drying you must have been spin-drying she must have been spin-drying we must have been spin-drying you must have been spin-drying they must have been spin-drying
Negation
Simple form
I must not spin-dry you must not spin-dry she must not spin-dry we must not spin-dry you must not spin-dry they must not spin-dry
V-ing form
I must not be spin-drying you must not be spin-drying she must not be spin-drying we must not be spin-drying you must not be spin-drying they must not be spin-drying
Perfect
I must not have spin-dried you must not have spin-dried she must not have spin-dried we must not have spin-dried you must not have spin-dried they must not have spin-dried
V-ing perfect
I must not have been spin-drying you must not have been spin-drying she must not have been spin-drying we must not have been spin-drying you must not have been spin-drying they must not have been spin-drying
Interrogative form
Simple form
must I spin-dry? must you spin-dry? must she spin-dry? must we spin-dry? must you spin-dry? must they spin-dry?
V-ing form
must I be spin-drying? must you be spin-drying? must she be spin-drying? must we be spin-drying? must you be spin-drying? must they be spin-drying?
Perfect
must I have spin-dried? must you have spin-dried? must she have spin-dried? must we have spin-dried? must you have spin-dried? must they have spin-dried?
V-ing perfect
must I have been spin-drying? must you have been spin-drying? must she have been spin-drying? must we have been spin-drying? must you have been spin-drying? must they have been spin-drying?
Interro-negative form
Simple form
must I not spin-dry? must you not spin-dry? must she not spin-dry? must we not spin-dry? must you not spin-dry? must they not spin-dry?
V-ing form
must I not be spin-drying? must you not be spin-drying? must she not be spin-drying? must we not be spin-drying? must you not be spin-drying? must they not be spin-drying?
Perfect
must I not have spin-dried? must you not have spin-dried? must she not have spin-dried? must we not have spin-dried? must you not have spin-dried? must they not have spin-dried?
V-ing perfect
must I not have been spin-drying? must you not have been spin-drying? must she not have been spin-drying? must we not have been spin-drying? must you not have been spin-drying? must they not have been spin-drying?