can gatecrash
Regular verb: gatecrash - gatecrashed- gatecrashed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can gatecrash
you can gatecrash
he can gatecrash
we can gatecrash
you can gatecrash
they can gatecrash 	I can be gatecrashing
you can be gatecrashing
he can be gatecrashing
we can be gatecrashing
you can be gatecrashing
they can be gatecrashing	I can have gatecrashed
you can have gatecrashed
he can have gatecrashed
we can have gatecrashed
you can have gatecrashed
they can have gatecrashed	I can have been gatecrashing
you can have been gatecrashing
he can have been gatecrashing
we can have been gatecrashing
you can have been gatecrashing
they can have been gatecrashing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't gatecrash
you can't gatecrash
he can't gatecrash
we can't gatecrash
you can't gatecrash
they can't gatecrash 	I can't be gatecrashing
you can't be gatecrashing
he can't be gatecrashing
we can't be gatecrashing
you can't be gatecrashing
they can't be gatecrashing	I can't have gatecrashed
you can't have gatecrashed
he can't have gatecrashed
we can't have gatecrashed
you can't have gatecrashed
they can't have gatecrashed	I can't have been gatecrashing
you can't have been gatecrashing
he can't have been gatecrashing
we can't have been gatecrashing
you can't have been gatecrashing
they can't have been gatecrashing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I gatecrash?
can you gatecrash?
can he gatecrash?
can we gatecrash?
can you gatecrash?
can they gatecrash? 	can I be gatecrashing?
can you be gatecrashing?
can he be gatecrashing?
can we be gatecrashing?
can you be gatecrashing?
can they be gatecrashing? 	can I have gatecrashed?
can you have gatecrashed?
can he have gatecrashed?
can we have gatecrashed?
can you have gatecrashed?
can they have gatecrashed? 	can I have been gatecrashing?
can you have been gatecrashing?
can he have been gatecrashing?
can we have been gatecrashing?
can you have been gatecrashing?
can they have been gatecrashing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I gatecrash?
can't you gatecrash?
can't he gatecrash?
can't we gatecrash?
can't you gatecrash?
can't they gatecrash? 	can't I be gatecrashing?
can't you be gatecrashing?
can't he be gatecrashing?
can't we be gatecrashing?
can't you be gatecrashing?
can't they be gatecrashing? 	can't I have gatecrashed?
can't you have gatecrashed?
can't he have gatecrashed?
can't we have gatecrashed?
can't you have gatecrashed?
can't they have gatecrashed? 	can't I have been gatecrashing?
can't you have been gatecrashing?
can't he have been gatecrashing?
can't we have been gatecrashing?
can't you have been gatecrashing?
can't they have been gatecrashing?