I must orient you must orient she must orient we must orient you must orient they must orient
V-ing form
I must be orienting you must be orienting she must be orienting we must be orienting you must be orienting they must be orienting
Perfect
I must have oriented you must have oriented she must have oriented we must have oriented you must have oriented they must have oriented
V-ing perfect
I must have been orienting you must have been orienting she must have been orienting we must have been orienting you must have been orienting they must have been orienting
Negation
Simple form
I must not orient you must not orient she must not orient we must not orient you must not orient they must not orient
V-ing form
I must not be orienting you must not be orienting she must not be orienting we must not be orienting you must not be orienting they must not be orienting
Perfect
I must not have oriented you must not have oriented she must not have oriented we must not have oriented you must not have oriented they must not have oriented
V-ing perfect
I must not have been orienting you must not have been orienting she must not have been orienting we must not have been orienting you must not have been orienting they must not have been orienting
Interrogative form
Simple form
must I orient? must you orient? must she orient? must we orient? must you orient? must they orient?
V-ing form
must I be orienting? must you be orienting? must she be orienting? must we be orienting? must you be orienting? must they be orienting?
Perfect
must I have oriented? must you have oriented? must she have oriented? must we have oriented? must you have oriented? must they have oriented?
V-ing perfect
must I have been orienting? must you have been orienting? must she have been orienting? must we have been orienting? must you have been orienting? must they have been orienting?
Interro-negative form
Simple form
must I not orient? must you not orient? must she not orient? must we not orient? must you not orient? must they not orient?
V-ing form
must I not be orienting? must you not be orienting? must she not be orienting? must we not be orienting? must you not be orienting? must they not be orienting?
Perfect
must I not have oriented? must you not have oriented? must she not have oriented? must we not have oriented? must you not have oriented? must they not have oriented?
V-ing perfect
must I not have been orienting? must you not have been orienting? must she not have been orienting? must we not have been orienting? must you not have been orienting? must they not have been orienting?