must abscise
Regular verb: abscise - abscised- abscised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must abscise
you must abscise
she must abscise
we must abscise
you must abscise
they must abscise 	I must be abscising
you must be abscising
she must be abscising
we must be abscising
you must be abscising
they must be abscising	I must have abscised
you must have abscised
she must have abscised
we must have abscised
you must have abscised
they must have abscised	I must have been abscising
you must have been abscising
she must have been abscising
we must have been abscising
you must have been abscising
they must have been abscising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not abscise
you must not abscise
she must not abscise
we must not abscise
you must not abscise
they must not abscise 	I must not be abscising
you must not be abscising
she must not be abscising
we must not be abscising
you must not be abscising
they must not be abscising	I must not have abscised
you must not have abscised
she must not have abscised
we must not have abscised
you must not have abscised
they must not have abscised	I must not have been abscising
you must not have been abscising
she must not have been abscising
we must not have been abscising
you must not have been abscising
they must not have been abscising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I abscise?
must you abscise?
must she abscise?
must we abscise?
must you abscise?
must they abscise? 	must I be abscising?
must you be abscising?
must she be abscising?
must we be abscising?
must you be abscising?
must they be abscising? 	must I have abscised?
must you have abscised?
must she have abscised?
must we have abscised?
must you have abscised?
must they have abscised? 	must I have been abscising?
must you have been abscising?
must she have been abscising?
must we have been abscising?
must you have been abscising?
must they have been abscising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not abscise?
must you not abscise?
must she not abscise?
must we not abscise?
must you not abscise?
must they not abscise? 	must I not be abscising?
must you not be abscising?
must she not be abscising?
must we not be abscising?
must you not be abscising?
must they not be abscising? 	must I not have abscised?
must you not have abscised?
must she not have abscised?
must we not have abscised?
must you not have abscised?
must they not have abscised? 	must I not have been abscising?
must you not have been abscising?
must she not have been abscising?
must we not have been abscising?
must you not have been abscising?
must they not have been abscising?