English verb conjugation
MUST ACHIEVE

Regular verb: achieve - achieved - achieved

Affirmation

Simple form	V-ing form
I must achieve you must achieve she must achieve we must achieve you must achieve they must achieve	I must be achieving you must be achieving she must be achieving we must be achieving you must be achieving they must be achieving
Perfect	V-ing perfect
I must have achieved you must have achieved she must have achieved we must have achieved you must have achieved they must have achieved	I must have been achieving you must have been achieving she must have been achieving we must have been achieving you must have been achieving they must have been achieving

Negation

Simple form	V-ing form
I must not achieve you must not achieve she must not achieve we must not achieve you must not achieve they must not achieve	I must not be achieving you must not be achieving she must not be achieving we must not be achieving you must not be achieving they must not be achieving
Perfect	V-ing perfect
I must not have achieved you must not have achieved she must not have achieved we must not have achieved you must not have achieved they must not have achieved	I must not have been achieving you must not have been achieving she must not have been achieving we must not have been achieving you must not have been achieving they must not have been achieving

Interrogative form

Simple form	V-ing form
must I achieve? must you achieve? must she achieve? must we achieve? must you achieve? must they achieve?	must I be achieving? must you be achieving? must she be achieving? must we be achieving? must you be achieving? must they be achieving?
Perfect	V-ing perfect
must I have achieved? must you have achieved? must she have achieved? must we have achieved? must you have achieved? must they have achieved?	must I have been achieving? must you have been achieving? must she have been achieving? must we have been achieving? must you have been achieving? must they have been achieving?

Interro-negative form

Simple form	V-ing form
must I not achieve? must you not achieve? must she not achieve? must we not achieve? must you not achieve? must they not achieve?	must I not be achieving? must you not be achieving? must she not be achieving? must we not be achieving? must you not be achieving? must they not be achieving?
Perfect	V-ing perfect
must I not have achieved? must you not have achieved? must she not have achieved? must we not have achieved? must you not have achieved? must they not have achieved?	must I not have been achieving? must you not have been achieving? must she not have been achieving? must we not have been achieving? must you not have been achieving? must they not have been achieving?