IR
TENER
SER
ESTAR
VER
100

I go

voy

100

I have

tengo

100

I am

soy

100

I am 

estoy

100

I see

veo

200

I went

fui

200

we have

tenemos

200

he was

fue

200

she is

está

200

we saw

vimos

300

He goes

va

300

I am going to have

voy a tener

300

I was

fui

300

it is 

está

300

we are going to see

vamos a ver

400

I will go

iré

400

I will have

tendré

400

I will be

seré

400

It is going to be

va a estar

400

we will see

veremos
500

We will go

iremos

500

I had

tuve

500

we will be

seremos

500

it will be

estará

500

I saw

vi