must ignite
Verbo regular: ignite - ignited- ignited

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must ignite
you must ignite
he must ignite
we must ignite
you must ignite
they must ignite 	I must be igniting
you must be igniting
he must be igniting
we must be igniting
you must be igniting
they must be igniting	I must have ignited
you must have ignited
he must have ignited
we must have ignited
you must have ignited
they must have ignited	I must have been igniting
you must have been igniting
he must have been igniting
we must have been igniting
you must have been igniting
they must have been igniting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not ignite
you must not ignite
he must not ignite
we must not ignite
you must not ignite
they must not ignite 	I must not be igniting
you must not be igniting
he must not be igniting
we must not be igniting
you must not be igniting
they must not be igniting	I must not have ignited
you must not have ignited
he must not have ignited
we must not have ignited
you must not have ignited
they must not have ignited	I must not have been igniting
you must not have been igniting
he must not have been igniting
we must not have been igniting
you must not have been igniting
they must not have been igniting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I ignite?
must you ignite?
must he ignite?
must we ignite?
must you ignite?
must they ignite? 	must I be igniting?
must you be igniting?
must he be igniting?
must we be igniting?
must you be igniting?
must they be igniting? 	must I have ignited?
must you have ignited?
must he have ignited?
must we have ignited?
must you have ignited?
must they have ignited? 	must I have been igniting?
must you have been igniting?
must he have been igniting?
must we have been igniting?
must you have been igniting?
must they have been igniting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not ignite?
must you not ignite?
must he not ignite?
must we not ignite?
must you not ignite?
must they not ignite? 	must I not be igniting?
must you not be igniting?
must he not be igniting?
must we not be igniting?
must you not be igniting?
must they not be igniting? 	must I not have ignited?
must you not have ignited?
must he not have ignited?
must we not have ignited?
must you not have ignited?
must they not have ignited? 	must I not have been igniting?
must you not have been igniting?
must he not have been igniting?
must we not have been igniting?
must you not have been igniting?
must they not have been igniting?