lw $t$0,0($$t$8)$

add $t$8,$ $t$8,4$

lw $t$1,0($$t$8)$

addi $t$8,$ $t$8,4$

lw $t$2,($$t$8)$

addi $t$8,$ $t$8,4$

lw $t$3,0($$t$8)$

addi $t$8,$ $t$8,4$

lw $t$4,0($$t$8)$

addi $t$8,$ $t$8,4$

lw $t$5,0($$t$9)$

addi $t$9,$ $t$9,4$

lw $t$6,0($$t$9)$

addi $t$9,$ $t$9,4$

lw $t$7,0($$t$9)$

addi $t$9,$ $t$9,4$

lw $t$8,0($$t$9)$

addi $t$9,$ $t$9,4$

lw $t$9,0($$t$9)$

sub $t$0,$ $t$0$ $t$5$

sub $t$1,$ $t$1,$ $t$6$

sub $t$2,$ $t$2,$ $t$7$

sub $t$3,$ $t$3,$ $t$8$

sub $t$4,$ $t$4,$ $t$9$

add s$1,$ $t$0,$ $t$1$

add $s$1,$ $s$1,$ $t$2$

add $s$1,$ $s$1,$ $t$3$

add $s$1,$ $s$1,$ $t$4$

add $v$0,$ $s$1,$ $zero

what are the $4$ syntax errors