must write
Verbo irregular: write - wrote- written

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must write
you must write
she must write
we must write
you must write
they must write 	I must be writing
you must be writing
she must be writing
we must be writing
you must be writing
they must be writing	I must have written
you must have written
she must have written
we must have written
you must have written
they must have written	I must have been writing
you must have been writing
she must have been writing
we must have been writing
you must have been writing
they must have been writing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not write
you must not write
she must not write
we must not write
you must not write
they must not write 	I must not be writing
you must not be writing
she must not be writing
we must not be writing
you must not be writing
they must not be writing	I must not have written
you must not have written
she must not have written
we must not have written
you must not have written
they must not have written	I must not have been writing
you must not have been writing
she must not have been writing
we must not have been writing
you must not have been writing
they must not have been writing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I write?
must you write?
must she write?
must we write?
must you write?
must they write? 	must I be writing?
must you be writing?
must she be writing?
must we be writing?
must you be writing?
must they be writing? 	must I have written?
must you have written?
must she have written?
must we have written?
must you have written?
must they have written? 	must I have been writing?
must you have been writing?
must she have been writing?
must we have been writing?
must you have been writing?
must they have been writing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not write?
must you not write?
must she not write?
must we not write?
must you not write?
must they not write? 	must I not be writing?
must you not be writing?
must she not be writing?
must we not be writing?
must you not be writing?
must they not be writing? 	must I not have written?
must you not have written?
must she not have written?
must we not have written?
must you not have written?
must they not have written? 	must I not have been writing?
must you not have been writing?
must she not have been writing?
must we not have been writing?
must you not have been writing?
must they not have been writing?