I must externalise you must externalise she must externalise we must externalise you must externalise they must externalise
V-ing form
I must be externalising you must be externalising she must be externalising we must be externalising you must be externalising they must be externalising
Perfect
I must have externalised you must have externalised she must have externalised we must have externalised you must have externalised they must have externalised
V-ing perfect
I must have been externalising you must have been externalising she must have been externalising we must have been externalising you must have been externalising they must have been externalising
Negation
Simple form
I must not externalise you must not externalise she must not externalise we must not externalise you must not externalise they must not externalise
V-ing form
I must not be externalising you must not be externalising she must not be externalising we must not be externalising you must not be externalising they must not be externalising
Perfect
I must not have externalised you must not have externalised she must not have externalised we must not have externalised you must not have externalised they must not have externalised
V-ing perfect
I must not have been externalising you must not have been externalising she must not have been externalising we must not have been externalising you must not have been externalising they must not have been externalising
Interrogative form
Simple form
must I externalise? must you externalise? must she externalise? must we externalise? must you externalise? must they externalise?
V-ing form
must I be externalising? must you be externalising? must she be externalising? must we be externalising? must you be externalising? must they be externalising?
Perfect
must I have externalised? must you have externalised? must she have externalised? must we have externalised? must you have externalised? must they have externalised?
V-ing perfect
must I have been externalising? must you have been externalising? must she have been externalising? must we have been externalising? must you have been externalising? must they have been externalising?
Interro-negative form
Simple form
must I not externalise? must you not externalise? must she not externalise? must we not externalise? must you not externalise? must they not externalise?
V-ing form
must I not be externalising? must you not be externalising? must she not be externalising? must we not be externalising? must you not be externalising? must they not be externalising?
Perfect
must I not have externalised? must you not have externalised? must she not have externalised? must we not have externalised? must you not have externalised? must they not have externalised?
V-ing perfect
must I not have been externalising? must you not have been externalising? must she not have been externalising? must we not have been externalising? must you not have been externalising? must they not have been externalising?